Ok, By reading the various threads on Rhino ramps, in some cases people will report no scraping on the front valance (black piece) and others will say 'yes'... their front end scrapes. For me, I'm really anal about my car and don't want to take the chance. I'd like to start changing my own oil, so I stumbled across these ramps from Griot's Garage. I just wanted to ask you fellas if anyone has tried them, and what's your opinion on them if you think they'd work. Link: http://www.griotsgarage.com/catalog.jsp?L1=L1_3000&L2=L2_3030&SKU=10142 Thanks!