To come close to the
To come close to the performance and features of a 2SS Camaro, you have to add the $2,495 GT Performance Package and $1,795 401A Equipment group to the Mustang Premium GT, which brings the price of the Mustang to $41,585, compared with $42,295 for the Camaro, a difference of only $710. Even with the Performance Package, the Mustang is still significantly outperformed by the Camaro. This has been demonstrated again and again in every measured performance test. And even with the 401A Group added to the Mustang, the 2SS still has more standard features. Sure you can add a bunch of options to the Camaro, like dual mode exhaust, sunroof, magnetic ride control, etc, and drive the price way up. But those are OPTIONS, and aren't even available on the Mustang.
The one advantage Ford has is they offer the V8 Mustang in a more stripped down version than the Camaro, if all you want is the illusion of performance without spending a lot of money. But if you want the best performance for your dollar, the Camaro is the way to go.