Bikelnside provides a system for 69,95 Euro plus 17,95 EUR per fork mount, which is simply clamped inside the car. It can only be used for station wagons and vans. The bikes are fixed securely at the fork and are protected against wind and thieves. This system is universally usable. For certain types of vehicles, there are also firmly anchored products.
... 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.