I'm looking at buying a rolling shell and I gotta paint and assemble but wanted to make sure it's a genuine GTS-X, as it's not built I can't actually identify with common methods. How can I identify a GTS-X with just the vin or model number or other numbers that are unchanged. Also I'd like to know what decreases value of the car such as changing the paint to a different colour to what's displayed on the cars colour code etc. cheers