Not sure, having a unique looking car is appealing, but its important to have the go to match up with the look, its no good if you look like a racer but get beaten off the line by a 1000cc perodua myvi - id die of shame.
if you havent got the cash for both, then work on the engine is the primary concern.
the engine an chassis mods. i personally dont care if it looks like a bag of nails as long as it keeps passing MOTS an can match other high powered cars:toung: