I bought that low-mileage TVR Tuscan Speed 6 in Titanium from the UCD, and I found something pretty neat. To start, I added a front splitter, side skirt, rear diffuser, and a rear wing for aero parts - but no widebody at all. Plus I put it on some nice-looking BBS wheels, and bought a ballast, power limiter, full-customize ECU, and the other two sport tire compounds - but nothing else.
It turns out when you put it on Sport Mediums and do a tiny bit of tinkering with the full-custom ECU and the ballast, you can get it to exactly 600 PP. I wonder how my build would do in the WTC 600?