The hot new Audi RS5 Avant has been spotted testing around ... the RS5 needs to reign in all of its horsepower and torque.

From its 2.9-liter V6, the Audi RS5 offers up 444 horsepower and 442 lb.ft of torque sent to all four wheels via an 8-speed dual-clutch automatic transmission. The implementation of Audi's ...