I was thinking of adding a coat of clear, spray-can plasti-dip along the inner wheel wells (especially the rear) of our 2008 and 2012 Mazda5s. The metal lip on the rear wheel wells that borders the sliding doors tends to be the first place where these vehicles rust. Many other makes of car carry the plastic inner wheel well liners all along this area, but Mazdas have metal on the front half of the rear wheel wells, vulnerable to stones thrown from the rear tires. This would be a protective coat, not decorative.