Audi releases S4 specs, pricing

The new Audi S4 is powered by a 3.0-liter TFSI V6 engine rated at 345 horsepower and 369 pound-feet of torque.  It hits 60 mph from a stop in 4.4 seconds, a figure that makes it half a second quicker than the outgoing model.  The model is on sale now, and pricing starts at $51,875.