• 2011 BMW Z4 by Kelleners Motorsport

We’ve been having plenty of tuning programs for the BMW Z4 recently, including two projects done by Japan’s 3D Design, including the ’Z4 for North America’.

Today, the BMW Z4 is once again front-and-center in the tuning world, only this time, the program comes courtesy of Kelleners Motorsport. Unlike the works made by 3D Design, which were largely based on aerodynamic improvements, Kelleners Motorsport offers the whole gamut of upgrades, including on the powertrain.

With a 3.0-liter twin-turbocharged inline six-cylinder engine already under the hood of the Z4, Kelleners Motorsport gave it a jolting boost, raising the sports car’s output from 335 horsepower and 332 lb/ft of torque all the way up to a mighty impressive 400 horsepower and 398 lb/ft of torque.

In addition to the engine improvements, Kelleners Motorsport also dressed up the Z4 with a set of 19" and 20" Hamburg or Berlin rims, as well as a lowered ride height by 20mm at the front and 10mm at the rear. Inside, there’s also a new three-spoke sport steering wheel, aluminum pedals, velour floor mats, and bespoke interior finishes in leather with wood trims that can be requested as a customer order.

  • 2011 BMW Z4 by Kelleners Motorsport
  • Year:
  • Make:
  • Model:
  • Engine:
    3.0-liter twin-turbocharged inline six-cylinder engine
  • Horsepower @ RPM:
    400 horsepower
  • Torque @ RPM:
    398 lb/ft of torque
  • car segment:


Kirby Garlitos
Kirby Garlitos
Automotive Aftermarket Expert - kirby@topspeed.com
Kirby’s first exposure into the world of automobiles happened when he caught Knight Rider on television as a five-year old boy. David Hasselhoff didn’t leave much of an impression on him (that happened later on in Baywatch), but KITT certainly did. To this day, Kirby remains convinced that he will one day own a car with the same ‘spirit’ as the original KITT (not the 2008 monstrosity). He doesn't know when that will be, but until then, he’s committed to expressing his love for KITT, and all cars for that matter, here at TopSpeed.  Read full bio
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Show Comments


  (498) posted on 12.19.2011

The exterior design is already perfect! It really looks cool and glamorous on that. However, I feel also so disappointed on its engine. I don’t think that it could already deliver a nice speed on it.

  (594) posted on 09.14.2011

It is not really impressive like the other convertible cars for me, sure, it had the classy look and the interior seems quite impressive and I wonder if it had an advanced technologies.

  (683) posted on 07.25.2011

what you said is kind of true. recently, I have heard that BMW is going to upgrade this model! Well, I guess its just an easy task for the BMW to modified the car since they already a high speed output for the car.

  (676) posted on 07.25.2011

Hell! The car look so sporty on its styling! However, its kind of disappointed that the figure performance is not that impressive! BTW, it seems that twin-turbocharged doesn’t produced a less powerful output.

  (412) posted on 07.21.2011

It was so glad to know that Z4 is now already in an upgrade car even with its power train. BMW cars are all simple yet very appealing. The wheels give more appeal on this Z4. It is so cool.

  (665) posted on 07.12.2011

Great! I love the look of this 2011 BMW Z4. It’s pretty and sexy, I guess that girls would love to ride on this kind of car. Congratulations BMW! It is really a nice car, keep it up! 

  (466) posted on 07.7.2011

This one is really pretty. I wouldn’t compared it to the Z4 done by 3D Design, which is my favorite, but I would boldly say that this is also a great take in its own right.

  (415) posted on 06.27.2011

Well, if that’s the case, then it would definitely be a good one for us. After all, what we all want is to see only the best cars coming out for the manufacturers, and that’s what we are getting now.

  (441) posted on 06.24.2011

Seemed that all car manufacturers were busy producing their own best’s features. I really hope that these cars will be featured here on TopSpeed.

  (358) posted on 06.21.2011

This one kinda looks a bit like the Z4 done by 3D Design. But it certainly looks sexier than that one, though I prefer that mainly because of the aggressive design.

  (488) posted on 06.17.2011

Looks like there were changes made from its aerodynamic and booster. I’ve think that this one has the highest horsepower and expect a biggest turn out once its being launched.

  (858) posted on 06.17.2011

Nice looking Z4. But even if had the money, I probably wouldn’t be getting this baby. I am actually more into the ones made by 3D Design, since I love really aggressive looking cars.

  (762) posted on 06.16.2011

This Z4 is more attractive than the regular one. Plus the fact that BMW did some upgrades on this one, it literally amazed all car owners.

  (452) posted on 06.16.2011

So, did they made this one into a sort of spyder version of the car? Probably, since I really don’t remember releasing a roadster version of this one yet.

  (516) posted on 06.16.2011

Well, lets be thankful for this aftermarket version for they have offered us a high performing car. BTW, I love the enhance look of the Z4.

  (806) posted on 06.16.2011

Wow!Its a good thing that they have enhance the figure performance of this car. The previous model have a lower figure than what this car have.

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