Testing a roof rack that you've already released? That workflow seems a little backward. Mmm-kay, how about the ride height then? Also, the roof rack has a deflector or something on the front that bridges the gap between the car roof and the box on top. Would not a "standard" roof rack's load NOT have such a deflector? Presenting an unnecessarily larger vehicle mass seems more consistent with simulating a larger vehicle, not on making an efficient roof rack.