I bought 2 of these to try to prevent my Tesla model 3 from scraping while pulling into and out of my steep garage driveway. It worked! I placed the ramps just inside my garage and they raise the car just enough to prevent it from scraping and grinding when i pull in or out. You will need to experiment to find the perfect placement to prevent scraping, but I was able to adjust them forward and back until I found the sweet spot. I then marked the spot with tape in case they moved. The ramps are very heavy and durable, and don't seem to move at all as my car pulls up onto them. Back tired partially sit on the ramp when I'm fully pulled in. No problem. These super heavy rubber type ramps are hardcore and do the job with ease!