- You are here:
- Auto News >
Click for hi-res gallery of the RENNtech SLR 722 PKG2 The Mercedes-Benz SLR McLaren may be on its way out, but that doesn't mean there can't be more horsepower extracted from the supercar. The original had 617hp. Then came the SLR 722, which despite its name had 650 horses underhood. The 722's ...