ABT Sportsline is always on top of the Audi models when it comes to tuning a revised version like this Audi A4. They have a wide variety of aftermarket parts for the sporty sedan, and keep the German styling at its finest. Up front, you will notice a more aggressive look with a new front bumper, then they installed side skirts, and rear bumper with diffuser integration. New side vents and a three piece boot lid spoiler complete the aero kit. Customers have the option of new alloy wheels to wrap everything together, and the Audi performance tuning came next.