update!
Just a wee update on this - as the car I have just bought (after a loooong search) needed a couple of new tyres to get through its mot - the dealer replaced the ones that were on there already to keep as a set - they were:
Federal SS 595 - 215/40/17
They look great, have a decent lip to protect your rims (which give the wheels a 'wider' stance) - plus only cost £50 a tyre - fitted and balanced (huge change from my old TT's 18" rubber!), definately worth a look next time you need to change your tyres though.
Cheers,