Will BMW Return To A V10 For Next BMW M5?

Rumors | September 19th, 2014 by 22
V10 M5 bmw 720x500

A BMW insider says that the next generation BMW M5 will return to a V10 engine. Here is why we don’t think it will happen

Latest rumor on the interwebs comes from the usual Scott26/27 BMW insider. His track record hasn’t been spotless so we always advise to take his statements with a grain of salt. His latest thoughts outlined in a forum say that the next generation BMW M5 will return to a V10 engine. As you would expect, the BMW community not only embraced this idea but are already thinking what kind of power it will deliver and whether will it be a naturally aspirated engine or a V10 TwinTurbo.

Before going all in, let’s take a closer look at this rumor.

Cons of a V10 Engine

Given all the downsizing, eco-friendly and environment happy news we’ve been getting lately from BMW, the idea of a V10 engine going back in the M5 and consequently the M6, doesn’t make much sense. Granted, things change a lot over the course of seven years (the lifecycle of a BMW product), so one would argue that anything is possible.

But the following question arises: why would BMW give up their high-performance V8 TwinTurbo in exchange for a less efficient V10? The 4.4 liter V8 TwinTurbo can certainly deliver more power than the 560 hp stock. We will already see this in the revised version of the upcoming BMW X5 M / X6 M. Without a doubt, the V10 naturally-aspirated engine sounds better than the V8 TwinTurbo, but is that enough for BMW to shift their engine strategy?

s63tu engine

Also let’s not forget the 2020 target for CO2 emission across entire fleets, a good enough reason for any automaker to downsize their engines and make them more efficient.

It also needs to be noted that the BMW E60 M5 with a naturally aspirated V10 engine weighs 1,855 kilograms or 4,090lbs while the BMW F10 M5 with a twin-turbo V8 engine weighs 1,945 kilograms or 4,288lbs for example. While the increase can be attributed to certain advancements in comfort, handling and overall appearance of the car it still remains a fact that the BMW M5 is getting heavier by each model coming out now. And a V10 would certainly not help.

Pros of a V10 Engine

Now let’s take a look at the pros of a V10 unit. There are not too many, but worth digging into them.

While some may argue that a V10 is a waste of time, space, weight and energy, some people don’t agree with that. A smaller displacement V10 could prove useful, providing the same amount of horsepower (or more) by utilizing a 3.6 – 4.0 liter engine displacement and going with a twin-turbo technology for it. Combine that with an electric motor powering the front wheels, the added traction and handling improvements may prove valuable for a vehicle like this.

While it’s main competitors are either sporting a 4.0l twin-turbo V10, as the Audi RS6 does, or a 5.5 liter twin-turbo V8 as the Mercedes-Benz E63 AMG utilizes, it may prove worthwhile to drop the weight, add additional traction to the front wheels, downsize in displacement and increase the number of cylinders to combat any power loss seen there.

BMW is also known to be testing a wide range of powerplants before settling on the most balanced option, so without a doubt, the BMW engineers are constantly looking ahead and aligning their knowledge with the company’s strategy and the market demands. Does that mean a V10 engine will be coming back? Only Garching knows that answer…for now.

22 responses to “Will BMW Return To A V10 For Next BMW M5?”

  1. THESTIG says:

    it will come back the M boss said in a interview NA engines will be back in future. even the M8 or M10 is in the works come on BMWBLOG Catch up…

  2. mckillio says:

    I was going to say that they wouldn’t be able to do their reverse flow turbo setup since a V10 is at 72 degrees but the S85 was 90 degrees (was that just to save development costs and modify a V8?) I don’t see BMW doing a V10 unless they downsize their V8 to 4.0 liters to be in line with the rest of their engines.

  3. Otto says:

    Did it cross your mind that the V10 could be downsized too – say 4L – and features turbos ?

    • Horatiu B. says:

      Yes. Of course it has. We even said that. But is the main benefit compared to V8?

      • Otto says:

        – Exclusivity.
        If I was the owner of a M6/M6, it will bother me a bit to know that my neighbour has the same engine under the hood of his 550i, mine being just tuned up. The previous M5/M6 was unique with its NA 5L V10.
        – Higher revs.
        the more cylinders, the higher revs, lower turbo pressure and more raging engine.

        On the down side, it will be slightly heavier than a V8.

        • ICS_Njave says:

          This is actually a very good point. It’s always a thing of getting a somewhat different, more appealing product and a show of force if you can say that of a premium model, which makes it a greatly attracting thing for many customers actually. For example, Audi has a distinctive 10 pice LED front lights on it’s 5.0L V10 powered Audi RS6 of previous generation which is a small, but to some, an important detail as well.

    • JRobUSC says:

      Considering BMW has repeatedly said they are going to a 0.5L per cylinder arrangement across all their gas and diesel engines so the parts are interchangeable, it’s unlikely we’ll see a V10 that is less than 5.0L. Right now the only engine that doesn’t fit the new philosophy is the 4.4L V8, so if BMW doesn’t come out with a twin turbo 5.0L V10 (which I doubt they will) then I’d be looking for a twin turbo 4.0L V8 (much more likely, and, surprise, is also what Audi is using now, and what Benz is about to be using)

      • ICS_Njave says:

        My question is why should BMW do the same exact thing as everybody else? Think the idea was pretty much to show that things can be done differently and still be relevant power, consumption and performance wise. Thanks!

  4. Mark says:

    The proposal probably works like this:

    What if a new Turbo V10, replaced both the current V8 used in the M5/M6 and the V12 used in the 760? The reason would be to make the V12 exclusive to Rolls brand.

    The new 4L V8 will replace current 4.4L engine used in non M models.

    It is most likely just a proposal, nothing more.

  5. FRED says:

    If THE RUMOR OF RETURN TO a V10 IS TRUE IS BECAUSE THE TWIN TURBO V8 IS NOT TOO GOOD ENOUGH…I PREFER TUBORCHARGING AND I PREFER V1O TWIN TURBO WITH LESS WEIGHT…IMAGINE THAT….IT WILL BE MONSTER…HOLLY SHIT!

  6. Luke says:

    Seriously, the rumor is just a rumor. Why would BMW be so anachronistic while the company’s been coming up with the most fuel efficient models in almost every segment? BMW obviously wouldn’t compromise fuel efficiency over mere ‘better engine sound’. and the company officially announced the production of models equipped with V10 engine ended when the old M6 production ended years ago. 4.0 liter V8 certainly makes more sense.

  7. T says:

    I don’t know why this has gone viral when my original post “STATED” it was a rumour and possibility but NOT a confirmation.

  8. hossi ta says:

    I think if the BMW make car that has V10 motore its become to one of the best superstare in the world

  9. Fermion says:

    I have a NA V10 and I don;t mind it! I only have the SMG tranmission. Give me a V10+manual please

  10. Fermion says:

    sorry.. don’t know how to edit comments (is it possible?) I meant to say I hate SMG (I do have it, and I do hate it)

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