I started looking at newer non classic cars the other day to see what I cold get. Looking in the BMW 3 series area but, most of them from the last 10-15 years are diesel so its a no go. I have two classics so will probably have to sell one to fund a sensible London Car. I did notice that Saxos seem exempt it seems (mentioned it in my saxo thread)... don't know why, they seem like they would have old engines.
Also, re BMWs and the likes... I watched a guy talking about a 5 series on youtube and he spent more in a year on it that I have on my Capri! If i'm going to buy a second hand car... its probably going to be a cheap focus.