Jacking up a lowered car can be a pain since there is no room to get a hydraulic jack under the crossmember/diff.
My 90 NOK solution.
200mm wide 50mm thick . First section 450mm and the second section 150mm. This way it will clear the wind deflectors that are about 50mm off ground.
This have already saved me a lot of time as I have been messing with the brakes and switched wheels a lot lately.