Have a quite old set of (steel) tire ramps which were always problematic even with my 08' Gen 2. I was thinking about a pair of the base model "Race Ramps", which at least appear to not rub against the front bumper with my new Gen 4 Prius 2. Anybody had experience with them?
I've used those too, plywood or a thin patio block. A bit bumpy and works, but I'd like something a bit smoother with a good tall "stop" at the forward edge of the ramp to prevent accidentally rolling too far forward and rolling off (only did that once and since I was already riding the brakes, came down gently, but it tends to put a crease in the splash guards...).