The BMW 5 series can look pretty cool, not a supercar or anything but you give that a good paint job and I reckon it'd be pretty good for driving around the city with (I may be alone here, but I find people who drive supercars round the centre of London more annoying than suave, obviously there is a time and place for them though).

My favorite one is Maurti Suzuki and Swift(hatchback) is the model I like the most.

Aston Martin V12 Vantage

the one with three pedals i will own this car someday