Used Performance Car Dealers

[5ohmustang]

I'm coming home to Manchester for Christmas, first time in 6 years as I live in the states. I want to visit a used car dealer that specializes in performance cars, hot hatches, rally slags, jdm etc. Where are the bigger performance car supermarkets in England, preferably in the North or in London.

Thanks in advance.

[5ohmustang]

Thanks guys.