Crawling under a slightly lowered C3 is nearly impossible unless you're ultra-thin. But even if you were, it would be of little benefit as there's no room to do anything under the car if you were able to squeeze your body under it. I weigh in at a buck seventy, so I'm not heavy by any stretch of the imagination, and can barely get my head and one arm under my Corvette when it's flat on the ground.
A floor jack is one of those must-have tools for the do-it-yourselfer mechanic, but if you're going to crawl under a vehicle, you will also need jack stands, which means you will spend time looking for stuff and then set it up.
So that's where car ramps prove their worth. You set them up, roll your car onto them, do whatever it is you're trying to get accomplished, and when you're done you simply roll your car off. Done!
Most ramps tend to be a bit on the high side for sports cars, so I did not really consider them for my Corvette until I saw a set of
RhinoRamps by FloTool advertised on Amazon.
They seemed they would work fine since they were designed for wide tire width, low-clearance vehicles, according to the manufacturer.
They were reasonably priced and, as an Amazon Prime customer, I would have them in my hands in two days. Best of all, if—for whatever reason—I did not like them or if they didn't work as advertised, I would be able to return them.