Hi all there is a S1 turbo on autotraders web site , just been to view pretty mint car but it is a re-shell using S2 bodyshell, what`s difference between the two, he say`s frt and rear panels have been replaced also bulkhead and bootfloor but there is NO chassis number in floor he`s asking £4`700 for it is it worth anything or shall i stay well clear cheers in advance