Front-wheel drive “pulls” the vehicle. For this reason a front-wheel-drive car is in principle more controllable and tracks better than conventional rear-wheel drive. On slippery roads in particular, the front-wheel-drive car has an advantage because the weight of the engine is over the driven wheels, thereby increasing traction. Today almost 80 percent of the world’s passenger cars have front-wheel drive. Audi’s models have either front-wheel drive or
quattro® permanent all-wheel drive.