Best executive and luxury cars to buy

The super rich have moved to private jets, but the rest of us can still pretend with a used Mercedes Benz CLS. We like: sexy wind tunnel styling, low depreciation when bought used, luxury cabins, incredible efficiency with diesel engines, 200 kgs lighter than an S-Class. We don't like: the proletariat, people in our way, ordinariness of everything else when you have to give the keys back.