The premium sports-sedan market is generating a lot of competition for the 2008 Audi A4. With a recently updated 3-Series from BMW, a totally revamped C-Class from Mercedes Benz, and respectable contenders from Infiniti, Acura, and Lexus, the current Audi A4 is beginning to look a little out of its depth. The bread-and-butter of Ingolstadt's model lineup is itself due for a complete overhaul later this year. From a technology perspective, we're expecting to see some of the goodies that so impressed us recently in the 2008 Audi A5. We are particularly eager to see the departure of the current-generation A4's ill-thought out digital-audio interface, which had us pulling our hair out during our week with the car. On the performance front, the turbocharged 2-liter A4 still holds its own against much of the larger-displacement competition, while Audi's legendary Quattro gives it go-cart handling.