I was at an event recently where the employees were guiding cars into a grassy field to park. Cars ranging from Toyota Camrys to Chevy Suburbans were driving up a small hill that was around 3-4 feet high and not too steep, but steeper than what most people will drive up on a daily basis.
So a brand new "muscle car" was having severe trouble climbing the hill. It would get about half way and then the back tires would just spin. Everyone around was in shock since every other car was parking fine. I don't want to disparage the make or model of the car, but picture something like a Ford Mustang/Dodge Challenger/Chevy Camaro.
Why would that happen? I'm sure most people view these cars as powerful monsters.