Slot.it CA29A - Audi R18 e-Tron Quattro #4 -

4wd slotNew four-wheel-drive chassis from Slot.it with cogged belt drive to front axle, with working differential for front wheels. Replicates the fourSlot.it supply their e-Tron Quattro with the front pulley one tooth larger than the rear one, which ensures that the front axle spins whenever the rear one does, but always slhtly slower, giving a rear-drive bias.