show quality you say?
this is what i would do upon looking at the model:
exterior:
wide bodykit jap import style
wider 18'' multispoke alloys
full scorpion suzuka exhaust system
half carbon fibre evo style rear spoiler
replacement grill (same mesh as bodykit)
like xavier said lambo doors on the front and if applicable suicide at the rear
carbon fibre hood with large intake scoop
inside, replace front seats w/ bucket race seats
colour code the interior and add a few tvs etc
plus a custom ice setup in the boot with flashing lights usually works