Pricing and financing are highly locally dependent. Roush is a specialty vehicle and that affects negotiability on both sides. If Roush sells every RS3 it makes, you ain't going to get much of a hearing. If there's 4 on the lot and you're the first one to show interest in a month, that's a different story. This is car buying 101.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto N/A tune. 100 shot nitrous on BBR tune. Best e/t 11.42 at 120.64
2012 Premium GT, Candy Red, Brembo package, 3.73, MT82, Comfort, Tech, et al. Procal tune, Roush UCA, UMI poly LCA, GT500s, Steeda red bracket, Hoosier 28x10x16 bias drags. Best e/t 11.91 at 115.23 RIP