... for example, three bicycles on a roof rack mounted at the recommended speed of 130 km / h, increases fuel consumption and thus the cost to third ... trunk and hitch bike racks where the bikes will be transported to the transverse direction, usually provide even greater air turbulence and thus driving resistance ...

Read the whole article at Spiegel online! The alternative: the BikeInside interior bike rack.

To the article on www.spiegel.de