Yep, those are the ones.

I know many people have gotten away with using them for years but the design flaw is still there. The ramps pictured are stout enough to keep the car off the ground - it's the sideways torque thing that tips them over. And yes, you can develop enough force to do that. Remember that the higher the car is the more inertia it's storing, ready to be released. So putting the car on the ramps sort of pre-loads it for toppling.

I have seen some ramps with a piece of angle welded at 90* to the length of the ramps and at the high end of the ramp to essentially widen the base (the ramp then makes a "T" as viewed from above). I'd assume that this is a good fix and should stop the problem.

PLEASE be careful. I don't want to read another story about someone being pressed to death under a car.

Dan