BMW Vision vs Porsche 918 – One Vision, Two Cars

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Before you sign the order for your BMW Vision enviro-supercar, you’d be well advised to check out the latest offering from Stuttgart. It appears that …

Before you sign the order for your BMW Vision enviro-supercar, you’d be well advised to check out the latest offering from Stuttgart. It appears that Porsche has their own unique “vision” of the consummate planet-friendly supercar, and it’s called the 918.

How do they compare? Whereas the BMW Vision keeps a strong focus on efficiency over all-out performance, Porsche’s 918 keeps performance squarely in the cross-hairs. Let’s look under the hood – err, mid -engine cover for starters.

BMW’s Vision utilizes an ultra high-tech 1.5 liter 3 cylinder diesel for propulsion, augmented by two electric motors, one ballasting the front of the car while powering the front wheels, the other mounted aft, adding power to the rear wheels. The 1.5 liter turbo diesel produces a mind blowing 163 hp and 214 lb-ft of torque channeled directly to the rear wheels. For those paying attention, that’s a stratospheric 108.7 hp/liter – from a Diesel! This power output is no small feat of engineering. Moving on to the electric propulsion, the front mounted electric motor adds 80 hp and 162 lb-ft of torque. For bursts of full acceleration, this front electric motor can muster 112 hp for up to 30 seconds or 129 for a maximum of 10 seconds. The rear mounted (read: aft of rear axle ala Porsche 911) electric motor spins out 33 hp and 214 lb-ft of torque – this power is also channeled to the rear wheels. A collective 325 hp (mindful of the 10 second power burst) is tasked to propel the Vision’s modest 1,450 kg (3,197 lb) curb weight, offering a power to weight ratio of 9.8 lb/hp.

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BMW’s Vision supercar makes takes advantage of Munich’s wealth of F1 carbon fiber technology to produce what is essentially a carbon fiber car. The chassis consists of a carbon fiber monocoque using extensive carbon fiber panels for aerodynamic effect. The Vision’s final drag coefficient though the air is an elusive 0.22 cd, allowing incredible consumption of only 3.76 liters/100 km (62.5 mpg) and only 99 grams C02/km. BMW is the first to bring a layering technique to automotive design, both on the interior and exterior of the vehicle.  0-60 times are expected to mimic M3 performance at approximately 4.4 seconds.

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Turning our attention to the Porsche 918, the figures are drastically different, yet the mission remains the same. A race-proven (RS Spyder LeMans car) 3.4 liter naturally aspirated V-8 produces 500 horsepower. Three additional electric motors collectively add 218 horsepower for a combined output of 718 hp. Tipping the scales at only 1,490 kg (3,284 lb), the 918 gives little to the BMW in the weight department, while upping the ante for out-right engine power. Result is a staggering power to weight ratio of only 4.57 lb/hp, with 0-60 times expected around 3.2 seconds. The Porsche is clearly faster, and it doesn’t hide its mandate, but here comes the shocker: Porsche’s 918 is destined to achieve impressive consumption figures of only 3.0 liters/100 km (78 mpg) and 70 grams C02/km. Porsche today unveiled the 918 RSR race car as a test bed for future production car technologies – the 918 features a 563 hp engine that spins to 10,300 rpm, augmented by two hybrid drive systems, one using electric motors and batteries for energy storage and the other using a flywheel to store energy under braking, spinning up to 36,000 rpm. Total power output on the 918 race car is 767 hp.

Now which car has the emphasis on green? Clearly the BMW’s mandate is more environmentally focused based on its design approach while the Porsche gives nothing up to performance.  The Porsche uses a more conventional gasoline engine in partnership with its three electric motors, but the end result is a claimed 15 mpg advantage over the BMW’s milage figure. True, both cars are yet to make their street debut, and we may find different real world figures that tell the story otherwise – but for now, we see impressive engineering in both cars.

Which one is the exotic? While few people would place “Diesel” and “sexy” in the same sentence, that may change with BMW’s Vision car. With a horsepower per liter ratio the envy of most gasoline internal combustion cars, BMW’s new Diesel is a true tour-de-force. Engineering at this level is exotic, no matter what fuel you’re burning. Flowing carbon fiber lines are nothing short of seductive, and this sports car reeks of technology. This BMW is one sexy “Vision.” On the other hand, Porsche’s 918 enviro-supercar is vastly more powerful – producing over twice the total horsepower figures of the BMW, while only losing 87 lb to the BMW.

Ultimately, the choice between these two enviro-supercars will come down to taste. Both bring incredible technology to the hybrid car car arena, and choosing between the two is to chose between an Omega and a Breitling.

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51 responses to “BMW Vision vs Porsche 918 – One Vision, Two Cars”

  1. Laszlo says:

    WOw. No BUllSh@te don’tblogabouit and no gimmicky paint job, just a pure race car look from Porsche. What a difference the presentation makes.

    BMW screwed this whole project up with their horrible marketing and advertising style. Porsche did not do anything but presented a car that looks realistic and production ready. The BMW is so much of a concept it could turn into a pinto.

    Wow, the porsche execution is awesome. I’m amazed. Never been a Porsche friend ever but this car is awesome. GT styling is definitely visible but what a twist ! I have my favorite car changed to Porsche from Ferrari.

    Who cares what the engine is (but the Porsche has a v8 and a whole lot more HP) and with a projected price tag of 250k I can see who will buy the BMW…. almost nobody. If there is 50k usd difference in the 2 machine and one makes 767HP and called a Porsche (and get 15mpg better ?) then who will buy the BMW ?
    BMW better up this game and come up with a realistic design or it will be a DUD.

    • Doug says:

      I don’t think *nobody* will buy the vision, but the 918 is tapping an existing target customer with a proven track record of emptying their deep pockets. The vision seems to be speculating on an uber-exotic prius crowd.

  2. Daniel Hoang says:

    500hp Low Displacment Naturally Aspirated V8 and 80 MPG with the batteries and Porsche Dynamics. The only advantage the BMW has is it is more practical with more seats and space.

  3. wazon8 says:

    I’m impressed by this Porsche. V8, 767 hp and 3.0 litre/ 100km consumption sound unbelievable. How did they achieve that?

  4. Jag says:

    this Porsche’s consumption reminds me of the Chevy Volt. with some tricks you can generate an impressive fuel consumption for the car; but in reality, it could never achieve. I trust BMW’s number, it makes more sense to me.

  5. They are different concepts of hybrid sport car, not comparable. The 918 is more an hybrid hyper-car, the VEDC is a revolutionary GT sport car. Personally, I prefer the first one, but I repeat, these cars aren’t comparable.

    • Babken says:

      Of course they aren’t, because Porsche is miles ahead in everything.

      • Doug says:

        Maybe… their mileage figures are a little suspect — a V8 with 78mpg? That has to be an average mpg when running on pre-charged batteries before hitting the tank. I don’t think these figures can be compared.

        The performance metrics are another story.

  6. Heddlu_Cymru M5 says:

    @ wazon8: I was thinking of that too… If it’s real, then it definitely is more than impressive!

    Also, remember everyone that the BMW VED will be priced at around $200k while from what I heard in Jalopnik if I remember correctly, the Porsche 918 will be priced at close to $600k! They both may have the same technology, but both have very different approach to it.

    • Heddlu_Cymru M5 says:

      They are completely incomparable, sort of like comparing an M3 to a Porsche Carrera GT… Definitely unfair but if you are really keen into performance hybrid, your clear choice would be the 918.

    • wazon8 says:

      Yes, these cars are in some sense imcoparable (two seater vs. four seater, VED is closer to M3, while Porsche to supercars), but on the onther hand, they cry for comparision since they’re first cars that combines efficiency and dynamics at this scale. What’s my main worry about this Porsche is that 3.0litre/100km is what you could achieve, if your driving was slow and careful. At least, I used to think that it’s obvious that high-rev V8 cannot consume less than 10 litre/100km, while drove gently, not mentioning about pushing it. Hope that you remember Top Gear’s comparision of M3 e90 and Toyota Prius feul consumption. Prius gave all it had on a track and M3… just followed behind it. The result: M3 was more economical car during this ride. Similar story can take place here, if you pushed this Porsche, it could drink more than 25 litre/100km. Otherwise, I’m totally impressed too and need to know what is a ratio between fuel and air in a combustion chamber.

  7. L. Hamilton says:

    Super Porsche FTW…!!!

  8. Babken says:

    I wonder what kind of fools chose BMW Vision over Porsche. These concepts clearly prove that BMW lags behind the high-end automakers. They boast about their Efficient Dynamics, yet Porsche humiliates them by making a much more powerful, much better cornering and much, much, much more economical car. BMW should do something with their idiotic engineers who concentrate on adding unnecessary weight to their cars and who understand nothing in fuel efficiency. Instead they concentrate on lane departure warning. RIDICULOUS.
    And alongside all the above-mentioned, BMW doesn’t even have a sports car in their line-up like SLS.

    • Heddlu_Cymru M5 says:

      Let me tell you something. Let the facts, tests and results says it all… All that you’re believing are just rumours and speculations. Porsche has yet to humiliate anybody until the real test been conducted. *I wonder what kind of fools choose to buy the 918 which is 3 times the price of the VED…*

    • wazon8 says:

      Before you get to bash BMW, wonder for a while, whether Porsche stated that their 918 can consume 3.0litre/100km or that it’s avarage fuel consumption of this car. BMW talks about average fuel consumption of VED, while it’s unclear what Porsche stated. Up to the time, I don’t know how one could normally drive high-rev. V8 with all these equippement and get such feul consumption. I am excited about this Porsche, but my worry is that they talk about minimal fuel consumption, not average. At least, this is so, when I think about air-fuel ratio in combustion chamber of such downsized V8. How much fuel does there need to be injected in order to keep burning process at – say – 6000rpm? Is 3.0 litre for 100km enough? All I’ve learned about car during using them suggest negative answer to last question. Eighter we have revolution here and can expect really efficient combustion engines from Porsche (which would be superb achievement) or we talk about minimal consumption, which is not as exciting: after burning 30litre/100km during exciting part of your ride, you can back home calmly, mostly using electric motors.

    • Blob says:

      i´m quite sure that the porsche is not much, much, much more economical car.
      in fact porsche has more or less already given a statement that this 3l are just for the New European Driving Cycle calculation and not for real live driving with this car.

      The Porsche can drive about 25 slow km electric, which is enough for this calculation to get the 3l badge.

      So they have build this car after this rules, in normal driving this car needs the fuel that you would expect ;)

      The Article (german):,1518,732098,00.html

  9. Babken says:

    By the way, Shawn Molnar. This sentence of yours “Ultimately, the choice between these two enviro-supercars will come down to taste.” is absolutely senseless, since Porsche beats BMW (and by a significant margin) by any parameter. If one has to choose between these two, they’ll choose Porsche without hesitation just like me.

    • Heddlu_Cymru M5 says:

      For the record, not everybody like the 918 and not everybody like the VED. Doesn’t matter how fast or how economical they are, they have rights to choose which one suits them the best and it’s all down to taste. If you really think the Porsche is better for you, just say it and I respect yours. Keep it for the record of yours while I choose the VED for various reasons…

      • Babken says:

        Tell me a reason why you would choose a car that is much worse in any parameter. Do you know why I start to hate BMW’s marketing? I’ll tell you. As far as I remember BMW has been boasting about creating the most economical “supercar” in the world for several months. Porsche has behaved in a much more modest way and concentrated on work rather than empty words and thus gave a real slap in BMW’s face. All of this testifies to just one thing: BMW has chosen the wrong way of adding weight to their new models and hiring incompetent engineers.
        BRAVO, Porsche;
        SHAME, BMW (though it’s my favourite brand).

        • wazon8 says:

          Have you read Blob’s post? Result of 3.0litre/100km is minimal one and not the one you will achieve in real life circumstances, since it includes slow driving at electric mode. Ok, you won’t achieve it, if you’re not a crawler. So, there is one crucial parameter for which you can prefer BMW – average fuel consumption. Taking the fact that VED was not supposed to be supercar, but rather combination of efficiency and M3 level performance, it filled its task very well. Once again, you went emotionally and reckless. But we used to it.

          • Babken says:

            The only thing that matters right now is that BMW doesn’t have a model that can be regarded as the best in the world as distinct from Mercedes-Benz or Porsche. They concentrate on adding weight and decreasing the fuel consumption thus losing in performance.

        • Doug says:

          That’s a bit severe, Babken, especially regarding incompetent engineers. If anything, the engineers are working with requirements and strategy imposed by management. The engineering itself is good.

          That said, though…. 62mpg is nothing special; it’s only marginally better than 4-cylinder turbodiesels that we’ve had for years. Maybe the number is conservative?

          Who the heck is “blob”?

          • wazon8 says:

            Someone commented above under nick Blob and explained what actually Porsche stated by saying that their car consume 3.0litre/100km.

            62mpg is indeed impressive, when it’s achieved by car with M3 level performance, isn’t it?

  10. Efoza says:

    This post is funny. Whoever came up with the idea clearly does not understand the reason behind the BMW Vision. The BMW Vision is a journey through various technology experiements and acheivements by BMW engineers for use on mainstream BMWs whereas the Porche is simply made to be production car full stop.

    I showed this post to a few BMW engineers today and they all laughed at the idea that the Vision was being pitched against a production car from another manufacturer in such a way.

  11. BIMMER1 says:

    These cars obviously get our emotions going, but I think most of you defending the BMW realize that the Porsche is the true supercar that the BMW should have been. I’ve said it all along, but BMW is completely missing the mark with this car. For 200k you need to be under 4 sec. 0-60 in today’s world. The BMW is still cool looking but from a performance standpoint it is severly lacking in it’s markey segment. $200k for only M3 performance? That’s just BMW shoving this car down thier buyers throats and not caring about the things that made this company so great. All they care about is the fact that the car is “green” so it will get CAFE off their backs a bit and someone’s going to buy it regardless of performance figures. Basically this car is showing everyone all the things that are wrong with BMW today. The problem is most people are too blind to see that.

    • BIMMER1 says:

      Now they better build the M1 hommage to fill the gap!

    • Babken says:

      Exactly my thoughts. I can surely say one thing: BMW’s engineers are INCOMPETENT. THAT’S A FACT. Because all the renowned automakers have a supercar, and the maximum BMW can make is a mediocre M3. Put it next to an SLS AMG.

      • adam says:

        you are absolutely right, BMW doesnt make competent sports cars,
        their fastest car is the m3 GTS, which cant even come close to the SLS AMG or R8 5.2.
        but i must say, they make great luxury sedan cars!

  12. Steve says:

    I am a diehard BMW fan as some people may know on here. I live and breathe BMW and get excited even when I see an e46 on the road. BMW is the car for me, until I can afford a Porsche. I feel that both brands are similar in the way that they try and stick to their roots as much as possible, and both focus on giving an unrivalled driving experience.
    I think that even though we all are slightly biased towered BMW, we’d all prefer a v8 to a 3 cylinder diesel, even if it were Audi :0 who produced a hybrid sports car (which they wouldn’t because they can’t engineer anything without VW :)

  13. Matthias says:

    I don’t believe Porsche’s Claim Chowder. Does anyone know if that Porsch’ has a CD player/radio? A/C? Navigation? It doesn’t even have a roof, does it? And how about storage? I don’t care about golf but some people actually care about lugging a golf bag. And that flywheel… good luck with that Porsche. Pray it doesn’t spin out of control!

    And concerning incompetence at BMW: as long as we are successful we have all the right to be “incompetent”.

    My personal humble opinion.

  14. Efoza says:

    As indicated above, this post is wrong to compare these two cars which are actually very different. However, it should be noted that there is good reason why everyone is talking about the BMW’s Vision being one hell of a compound of engineering advancement on all fronts. Trust me when i say there are engineers in places such Japan and other parts of Germany [not mentioning names ] who are simply admiring the Vision for what it is- a perfect source of advancement in car manufacturing.

  15. Matt Stokes says:

    Lol @ Babken, simmering in a hot cauldron of Troll Soup!

    I’m not going to argue about which is better or worse, but I’ll merely state that anyone that thinks they can have 767hp and at the same time return 78mpg is misguided. It can achieve one, or the other, but not both.

    The fact is that no-one who will use 700+ horsepower will be worried about the economy, and nobody worried about economy will buy a Porsche 918RSR.

  16. John says:

    Blob. Thanks for the link to Spiegel online, i can read GER/ENG perfect.
    The article made everything clear how Porsche is covering up using (Hybrid) rather than being Innovation like BMW.
    Honestly I was shocked about how Porsche could possible have a better C02 emission as the BMW with so much more HP and with a V8, it truly took my breath away and concerned me if BMW is starting to cheat us but thanks to the Spiegel Online article its all clear that Porsche is the cheat here.
    Those who have BIG MOUTH and no BRAINS or aren’t able to think Logically and out of the BOX, you aren’t insulting us BMW’s fans who got their facts right and aren’t blinded by being just fans but are interested in knowing the truth before claiming the competition is crap or a cheat.
    Once you have your facts right you can’t deny BMW is truly the Innovative Company here with their concept that is almost production ready in addition the technology used in the concept are in each BMW cars which are already being sold, and one more facts the design is the concept and not the technology as almost all of the parts are tested and have been in use for over few years no.
    SO if you think you are still insulting us BMW fans and BMW than we shall not be bothered with you since you’re rather are making fools of your own-self and just trolling around.

  17. AKSHAT says:

    If you are looking for luxury and look go for BMW .
    If you are looking for performance go for Porsche.

  18. Joe says:

    I really just think Porsche got tired of everyone talking about the R8 and 458 … and decided to hit a home run like they did with my favourite super car the Carrera GT. The 918 and VED are in complete different boats and comparing them is really like comparing an M3 to a GT3RS. I own both a Porsche and BMW .. you just can’t compare the 2 – entirely different mindset and focus.

  19. Jklmo says:

    It is funny to see people arguing on this weblog. It is a blog site. Referencing an article from the same blog site completely based on opinions does not make it factual. Pretending you know BMW engineers does not make your comments factual. Your attempts at making people fanatically devoted to your preferred manufacturer is as ignorant as the guy so misinformed of how vehicles operate that he believes 78mpg is attainable in normal street driving.

    Unfortunately, google has decided to place articles such as the 6th grade garbage found on fanboy websites in their news section. So now, true auto enthusiasts who could care less about emblems end up on circle jerk websites like this.

    Both cars were created based on efficiency and performance. There is easily a legitimate reason for comparing the two. The BMW looks like every other BMW with lights in it’s grill like some tacky tuner from fast and the furious. Combined with it’s price tag, it is clearly underperforming. Only a brand fan could bring themselves to believing that the car does not fit the hype.

    By the way, this was an exceptionally well written article considering the URL.

  20. adam says:

    bmw= mercedes= audi
    this is not a good comparison, this car should be compared to the SLS amg E-CELL
    or something within its league

    • AKSHAT says:

      you are a shithead .
      neither merc is equal to BMW nor Audi .

      • bin-laden says:

        ‘neither merc is equal to BMW nor Audi .’

        what a narrow minded opinion!!!
        merc and audi are equally reputable brands with company history even before ww1!!
        theres a reason why, these brands keep copying each other’s technology and designs.
        pricing wise, they are about the same, too. i might say that benz offers a little less costs a little more, probably due to their renowned rep, especially the s-class being well known for the no1 selling luxury sedan since 1965 worldwide.

  21. taulant says:

    bmw jan te bukura shum ska me te bukura se to bmw kerri ma i mir ne bot esht bmw sepse ishtw e buker ajo foto dh pelqej ate

  22. Laszlo says:

    Porsche won this round by a landslide. not that it surprised anyone.

  23. Khalid_ahmadi1 says:

    I wanna see a futuristic car and the bmw looks futuristic. but i really wanna see bmw making a car that keeps up with ferrari and porsche.  

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