Well that would depend on a number of things but mainly for initial impact.
Your skills with firstly a hacksaw or better still reciprocating saw, then your skills with some vinyl, a needle and thread, u could even go one step for a real professional job and use clear polythene and carpet tape for a rear window then pimp it up a bit using the same materials and make a small panoramic roof in middle of vinyl...... oh yea just visualizing it now..... classic! !!
It would even leak like a proper renault. Wow
