A Track Pack should be offered on the V6 Mustang that is similar to the Track Pack that is now offered on the 2013 Mustang GT. Ideally, the package would consist of the components of the V6 Performance Pack with these additions: 1) Brembo brakes (with 19 x 9" wheels to clear the brakes), 2) engine oil cooler, 3) 7000 rpm driveshaft to allow minimum 145 mph governed speed, 4) Torsen differential, 5) larger radiator (if needed), 6) engine calibration that takes advantage of premium fuel and has more engine braking, 7) Track Aps gauge package on base cars. All of this can be sourced from current production parts with the possible exception of a 3.31 Torsen. If you used the existing 3.73 Torsen, it would probably require using the V8 MT82 gearing to minimize the impact on fuel economy, but the closer ratios would be appreciated.