Hi all. Considering an E class V6 to replace my Audi (which I hate, runs like a dog, too stiff and noisy). I also have an S type 3.0 V6 which is just a weekend car. The Merc would be a work horse. I have a budget of £7500 which should get an 06ish? What should I look out for and what is real world mpg? Thanks for any advice.