it can not be done or im gonna register my fiat uni as a ferrari
hell id register my cossie as a fiat panda just to lower the insurance
a xr3i is what it is as subtle changes to the spec make it a rsturbo, roll bar for one of em, theres others too ( like rot under the body kit

)
if you did re register it as a rs turbo then the person who buys it is being ripped off, how would you like buying a ferrari to find its a MR2 with fibreglass
leave the ringing of cars to the pro's
guzzler you must have been lucky about the cabrio as there actually a insurance group HIGHER than the ERST