The third most important German tuner, Hartge, has just released their own version of wheels and tires for the new 2009 BMW Z4. Just a few days ago, we saw Hamann coming up with new Z4 wheels and prior to that, Ac Schnitzer.
The Hartge kit will include stainless steel tail piece, a new speedometer, aluminum pedals, aluminum foot rest, aluminum steering wheel and wheels in 18 or 19 inch.
It is clear that without an M model in the the pipeline, the tuners will have an opportunity to sell many aerokits but also engine upgrades. Of course, all these additions will be quite costly, but I have no doubt that the true bimmer fans will see past that.