The current 2010 Ford Mustang line offers a pair of upgrade packs, called the Track Pack and the FR3 Handling package. For 2011, Ford is rumored to be working on an even hotter Track Pack setup to help get the most out of the 5.0-liter, 400-horsepower 'Coyote' V-8 expected to lie under its hood.

Ford engineers were out testing the vehicle this week at GingerMan Raceway in South Have, Michigan, according to a Car and Driver report, and they were testing camo-clad 2011 Mustang GTs, one of which wore an adjustable, pre-production prototype of the upcoming Track Pack.

So what can we expect from the 2011 Mustang GT Track Pack? Upgraded Pirelli P-Zero Corsa tires, to start with. Anyone that tracks, autocrosses or just drives their car hard knows how important grippy tires are, and the Corsas are an upgrade over even the standard P-Zeros fitted to the current Track Pack cars.

Aggressive suspension settings and brawnier brakes are also likely to be necessary upgrades to keep pace with the Coyote engine's increased output, which will translate into higher speeds both exiting and entering corners.

Read up on our previous coverage for more on the 2011 Ford Mustang, including the non-GT version.

[Car and Driver]