Audi A4 40 TDI S Line 4dr S Tronic Diesel Saloon, , The Audi A4 will be near the top of any executive car buyers shortlist, and it thoroughly deserves its place there. Its enjoyable and comfortable to drive, a joy to sit in, practical enough for a family and very competitive on kit and cost. One of the best cars of its type. The Audi A4 is pretty well equipped as standard, with all the usual boxes ticked when it comes to keeping you and your passengers safe and sound. That means you get six airbags, anti-lock brakes, traction and stability control. For even more security, there's also cruise control, reversing sensors to help you park, and a pop-up bonnet to protect any pedestrians you may accidentally hit. There is also a system that'll brake for you to prevent a crash around town.