4WD

4wd slotSlot.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.For the rest of us mortals (!) the Slot.It belt driven 4WD is a good compromise. It's available on the Audi R18 and there are also compatible chassis for the Scalextric short wheelbase Quattro and the Delta S4 available through