So it draws a shell atop the stand in? That isn't enough. It doesn't seem to model flex, body roll, vibration or even accurate suspension movements. It won't fool car guys.
It might not fool "car guys" but a large number of car commercials shoot with CG cars now.
Also they say "any" car, but what they really mean is any car with worse performance characteristics than this car. (Try using it to simulate a F1 car)
Those usually don't get that much advertisement because not that many people buy them.