The 4.2-liter V8 remains naturally aspirated, but its breathing has been improved to bring the maximum output up to 450 horsepower and 317 pound-feet of torque. The power peak comes up at 8,250 rpm, just shy of the 8,300 rpm redline, and maximum torque is delivered throughout the range between 4,000 and 6,000 rpm. The RS5 comes out the factory with the ability to accelerate to 62 miles per hour in 4.6 seconds on the way to a governed top speed of 155 mph. Owners that wish to exceed that speed can have the governor unlocked, enabling a terminal velocity of 174 mph.
The RS5 will get its public debut in Geneva next week and goes on sale in Europe this spring for a base price of €77,000 (about $104,000).