For me it's easy to choose. I don't hate cars as such, but to me, anything with wheels is no different than a washing machine or fridge. Therefore, a Lambo or a Rolls is just a washing machine with more bells and whistles than say, a Camry that only has the basic functions you'd expect to find on a budget washing machine.
Nonetheless, I made lot of money over four decades fixing cars, so there is that.
But to Barry's question- If I had to choose the most hated car on Carnity or anywhere else, my choice would be based solely on these criteria-
1) how difficult a given car is to work on
2) how difficult it is to find parts, and,
3) how often it breaks down
Thus, based on these criteria, Land Rovers and all French cars would win hands down, every time.