BMW working on two different versions of G29 BMW Z4 M40i

BMW Z4 | October 7th, 2017 by 21
BMW Z4 Concept Frankfurt 16 830x553

The top model of the upcoming BMW Z4 lineup might be offered in two configurations. The 2018 BMW Z4 M40i – codename G29 – is …

The top model of the upcoming BMW Z4 lineup might be offered in two configurations. The 2018 BMW Z4 M40i – codename G29 – is currently being tested with two engine configurations. The B58M1 3.0 liter six-cylinder engine is under the hood of one Z4 M40i making 335 horsepower. A second engine – B5801 – with the same displacement is being used in a second M40i with a total output of 385 horsepower.

At first glance, the different in power output seems to depend on the emissions standards – the higher power version is being built for the countries without EU emissions regulations, including the US. The move will be quite unusual for BMW which historically has tried to be consistent across different markets, with a few changes, especially related to diesel engines.

BMW Z4 Concept Frankfurt 15 830x623

Furthermore, it is not also the first time that BMW is testing different engine configurations before settling on the production unit, so at this time, we can’t state with certitude that the Z4 M40i will be offered with two different power options.

We’ve also learned a while back that there won’t be a new Z4 M, so that rules out the possibility of a higher power output being used in the M model.

But if we were to bet on something it would be a Competition Package being offered for the Z4 M40i which will explain the additional horsepower and likely more torque.

BMW Z4 Concept Frankfurt 10 830x623

WORLD PREMIERE: BMW Concept Z4 Roadster

What we do know for sure is that the Z4 will be powered by four and six-cylinder engines. The base model is the Z4 sDrive20i, powered by a 2.0 liter four-cylinder unit rated at 180 horsepower and 200 lb-ft of torque. The sDrive30i features the same engine with 248 hp and 258 lb-ft.

21 responses to “BMW working on two different versions of G29 BMW Z4 M40i”

  1. Kaisuke971 says:

    385hp sounds spicy !

  2. Autopal says:

    I’m not interested in this car, but the new G20 M340i with 385hp would be sweeeet!

  3. Pictor says:

    There is potential in this car but in the past BMW was content slotting the BMW between the SLK and Boxster which I feel hurt the car given it’s price.

  4. Central Lifestyle says:

    The car is begging for a Z4M version to be made out of it. If the 2 series can have the M2 made out of it, what could possibly be the reason not to offer the market a Z4M? 400+hp, body/engine/axle/exhaust tweaks, M steering/gearing, wider track stance, tweaked interior etc. and it’s good to go. Perhaps it will be too limited in sales to make business sense.

    • Giom says:

      Good question. BMW does seem to have some confidence issues with such a model. Haven’t learned yet… it’s what ppl want!

    • Senne says:

      The reason is definitely that the market is to small and therefore it wouldn’t make them (enough) money. They already said that the reason for the collab with Toyota is the ever decreasing roadster segment. Like you said they could definitely build a Z4M and it would be a true Ultimate Driving Machine, but we’ll have to do with the M40i. That being said, a Z4 M40i with nearly 400 HP stock (can easily be tuned for way more) will be a really good driving machine. :)

  5. Jay says:

    As an owner of an E86 M Coupe and an E92 M3, I believed that the Motorsport division truly meant something. However, it is inconceivable that a company would make Motorsport versions of SUVs and not make an M version of a Z4. If there is any car in the entire BMW lineup that would warrant a M version, one would think that a sports car would warrant such a build. What a terrible disappointment and a terrible shame.

    • Senne says:

      I do agree, but the reason is that (relatively) a lot of people are willing to buy an uber fast SUV, but very few people are buying roadsters these days… Hence why they are building one of the fastest SUVs/SACs on the planet, but won’t build a full-on Z4M… :/

  6. Honda NSX-R says:

    I hope the 385 hp variant goes in the Supra.

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