Have you tried Rhino Ramps or a facimile from Griots Garage? Not a jack, but works well as long as you use a spotter. Raises the car up far enough to change
oil etc. I used them on my wife's Miata 3-4 years ago and drove right off the end of the Rhino Ramp. Duhhh! Good thing it was not a big deal to use a floor jack to get the car off the ramp. And....Good thing no one was watching too! I haven't shared this story with many car guys to date.