You do have a clever girl, our Ginnie is as stuborn as a donkey, and will not get into either of our cars, unless it is after a visit to the vets and she then leaps in !!! About 15 years ago, we made our own ramp with plywood and covered it double with breathable ground sheet (the sort that is now used on trays to stop things slipping)so it couldn't possibly slip, I sewed it up all around with strong thread, and it rested on the bumper,. Now it is used only to protect the seats in hubby's car !!!