CU lost me at "modified test course". Why was it different for this car? Even then they only got it to lift 3 times out of 71 attempts, and only with exaggerated inputs.
To be fair though (alternatively that sentence could start with "On the flip-side", lol) they are a moderately rollable car. But having owned one, if you've rolled one, you've either had zero respect for the fact you're driving a tallish narrow car (ie: the driver is meant to drive to the conditions - even in emergency maneuvers), or have done something deliberately stupid. They have ridiculously good brakes too, so most precarious situations would be avoided in that manner. Heck I'm probably biased, but they're a great little car when you can manage without all the modern bells and whistles.
The "moose test" has been faked by journos a few times over the years for scandal making purposes too, which was more why I referenced it. The first Mercedes Benz A-class was another classic example of fiddled tyre pressures and yanking the wheel makes the car go A over T.