in case its to late now but always check a car before you buy rush or not! espesially when its 1700 quid!
as far as the checks go, the car looked fine, and drived fine, even the hpi said it wasent stolen as it was on different plates, and all the vins numbers matched., so not being a mechanic myself, lookin at the engine, it said vw on the top of it, i was never going to know any different.
it has taken 3 weeks for the police to realise iots a gti, not 1.6 shell
they said, the vin numbers had been changed professionaly, so it looked really convincing.