Have built this past weekend the Grand Prix racer. Not bad (= three stars), but it does not exceeds my expectations. Make short order of: The two points are deducted there are for (1) the functions, because a mediocre consuming manual transmission, you can set whether you want to move the rear wing or the hood. I find that a bit poor. I had previously built the also acclaimed crawler excavators, and find the relative (half price, half the number of parts) is much more convincing than Technic model. So as Technic model of race car is almost borderline, because most part of the look and not for the technology to be used. So buy recommendation for those who delight in the appearance of the car. (2) A little disappointed I was when I noticed that the motor function is not intended to drive the race car. Since you buy a race car (RRP 99) and a matching engine (RRP 37), but the engine does not drive the race car, but only the two motorized functions Heckfügel or hood above! Only negative criticism? No, the highly acclaimed suspension of wheels and steering of the front wheels are really impressive, and the whole model is about 60 cm length quite large and what makes her. So overall rather than race car for Lego Technic fans!