Typically, those who want the capabilities of a high-performance sports car are forced to settle for a high-priced coupe with minimal interior space and cramped rear seating—if there's any rear seat at all. Audi was one of the first companies to change the sports car image, creating fun and fast sedans that were stylistically fashionable and reasonably affordable. As the market competition became stronger, Audi took its four-door touring sedans one step further by creating the "S" models. Today, the most prominent and affordable S model is the S4. Based on the compact A4 chassis, the S4 has quattro all-wheel drive, a beautiful interior and a 340-horsepower V8 engine. Available in sedan and wagon versions, the S4 delivers absolutely exhilarating performance without the need to sacrifice comfort, interior space, luxury or status.