Problem is that a V6 Mustang uses a tire size that's a common minivan/SUV size(the 2004-2010 Siennas, 1999-2004 Odyssey, 2nd gen CR-V and Volvo XC70/VW Tiguan use that size) so most tires of that size will be touring or standard tires.
Seems as if a 225/60/16 would be more of an appropriate size.
Seems as if a 225/60/16 would be more of an appropriate size.