The F10 M5's the quiet one. It's a 560 horsepower sedan that reads as completely subtle until the light hits it properly, which is most of the appeal. This blue 2016 example wears Icon Rocklear, our permanent paint protection coating, and it came back for a wash a couple of months after the install, so we put it under the studio rig while we had it. The metallic blue's holding a wet-glass gloss across the hood and doors that makes the car look newer than its decade.

Metallic paint is where you'll notice the difference fastest, so if that's what you're driving, this is the page worth reading.