BMW Z29 is a case study for the BMW Z4 Coupe that will probably never go into production. The new Coupe is a lightweight construction wuth new materials used.
The Z29 is made out of carbon fiber it has the M3 engine with an output of 343hp. The empty car weights 2557 lbs and with its four meters gives an raport of 7.4 lbs per hp - a value, which otherwise only many stronger sports cars like a Porsche 911 turbo (480 HP) or a Ferrari 612 Scaglietti (540 HP) have.
The two-seat prototype Z29 weighs approximately 440 lbs less than the Z4 Coupe, however with the aluminum rear axle the weight could be reduced by 30 per cent to altogether 92 lbs. Front and rear module of the body are made out of aluminium. The doors are made in modular construction and have an interior and an external structure.
With the M3-Motor moved into the middle of vehicle and the six-speed transmission the small Coupe can sprint from o to 60 mph in 4.2 seconds and has a top speed of 167 mph.