This is my first experience wiuth Audi after owning Volvos, SAABs, and BMWs. I bought the car this past summer with 32K miles on the Audi CPO program. The brakes are touchy/grabby, but I've learned that's a common trait with the A6, and I've learned to live with it and adjust. At 36K miles, the engine quit in traffic, and I had to have it towed to the dealer for repair. It turned out to be a faulty low fuel pressure sensor, and this was repaired under warranty. The following week, a simple daylight running light bulb went out, and this an only be repaired at the dealer!