On the eve of the unveiling of an all-new generation, nothing changes this year in the BMW Z4 simply because there is no 2009 model! So, we must be content with its distinctive and controversial lines, while on the mechanical front, we get a 255 horsepower 3.0-litre engine with six in-line cylinders. On the other hand, the M versions (coupe and convertible) are driven more powerfully with a 330 horsepower 3.2-litre engine, nothing less.