Because mock up cars are ghey. For what you will spend making it look like an F6 you could probably have just bought one instead. Look on carsales. They go for under 21k. Only mock ups that look ok are old school muscle cars like XY GTs, Torana A9Xs and Blue meanie VK Brocks. There aren't many of these on the road and they are rare enough to warrant making mock up versions.