Hi, i am gonna get a Renault Clio Diesel 1.4 2005 reg because it is being offered to me at 50% value no strings.  It is to good an offer to refuse.  What can i do to the car - specific to Renault Clio 2005 if possible.  The first question really is can i improve the performance taking into account it is a diesel? Can i superchip it?  Can i add a stainless exhaust?  I want to put a kit on it but would feel very uncomfortable sticking on a V6 Replica kit say if there is no performance.  Most of the internet suppliers for superchips specify turbo diesel - but a friend told me that most diesels nowadays including this clio would probably have a built in turbo anyway.  Is this true?  And what size of wheels / alloys could i put on this car?  Any information would be great - please excuse my clear lack of understanding on modifying.  Links to dealers supplying what you advise would be great to.

tHANKS