I compare them to the Germans because if you read Motor Trend's article on the 2011 GT, they said the new Mustang GT is on par with anything coming out of Germany for half the price. Now if someone was looking at an AMG/BRABUS coupe or an M6, and they weren't looking for a status symbol, they could technically cross-shop the GT500, and get the same or better performance for half the price, with the same amount of quality.
2006 Ford Mustang V6 Pony Package (Sally)
2009 Mercury Milan
1992 Mustang GT (auto)
1986 Ford Bronco XLT (Papa)