Audi Previews S5 Sportback, Green A4 TDI and A3 TFSI Before Frankfurt

The S5 Sportback builds on the already sleek and stylish base of the A5 Sportback and the S5 coupe/cabrio, adding a turbo 3.0-liter V-6 engine rated at a potent 333 horsepower and 324 pound-feet of torque. Despite the big power figures and making the dash to 60 mph in just 5.4 seconcds, the S5 Sportback is still rated at 24.25 mpg. Power is sent to all four wheels via a seven-speed S tronic