The 2009 Audi S4 sedan finally comes close to actually satisfying all of our expectations of an Audi S car, even on track day.

The 3.0-liter V6 TFSI engine in the new Audi A6 range is the first supercharged Audi engine in several decades. In standard form, the Roots-type Eaton supercharger provides max boost pressure of 11.6 psi, delivering 285 horsepower and 310 pound-feet of torque for the A6. For the 2009 Audi S4, this same engine with the same boost results in 329 hp and 324 lb-ft of torque. With the standard six-speed Getrag manual transmission in place, this power gets the S4 sedan to 100 km/h (62 mph) from a stop in just 5.1 seconds, while the optional S tronic seven-speed dual-clutch transmission gets you there in 5.3 seconds. Which is plenty quick either way.

The estimated $49,000 base price for the new Audi S4 sedan represents only a modest price increase against the outgoing S4. Not a single S4 will be sold for less than $55,000, however, given the desirable cost options list.

[Read more: Edmunds.com]