There's nothing like track time to see what a supercar is made of. That's why I was optimistic that, not only had Mercedes and AMG re-worked the SLS for 2013, but also they invited me to  the track to drive it. They say it's faster, sharper, more responsive, and will return more feedback to the driver than the outgoing "standard" SLS AMG, but were they right? Only one way to find out.