This isn't an official Lego Speed Champion (6 stud wide) car, but a MOC (My Own Creation) by Gallardo of LU. I made some modifications, mostly to the internals to use as many parts as possible from Lego 75899 (La Ferrari) and to provide a stronger chassis lengthwise. The rest of the parts I brick-linked from BrickOwl. These 6 stud wide cars are pretty small, and given the inherent limitations of existing Lego parts, it's difficult to get the proportions totally right. I'll probably print out some custom stickers to make a rear window outline closer to the real car. BTW, take a guess what this car is. The side mirrors and tailpipes should give it away.