Audi Quattro Concept is the company’s surprise at the Paris Motor Show, a model created for the celebration 30 years of Quattro technology.It gets even better because Audi’s legendary Quattro torque-vectoring all-wheel-drive system offers the concept a power to weight ratio close to that of the Audi R8 5.2 FSI.Audi also revealed the Audi e-tron Spyder, an amazing diesel electric hybridAudi