it may be not a driver's car...
in the sense of a 3 series, or whatnot, but not everyone wants super sporty handling, with it's accompanying hard ride, noise, etc in a car, owners of larger cars particularly often want a smooth, luxurious and quiet ride, something that the big old rear drive V8 US cars of yore once excelled at. No, they weren't efficient, but they sure were comfortable, just the thing for someone with a more laid back driving style, too many people are in such a hurry! Juan Manuel Fangio, perhaps the greatest racing driver in history, was once asked by a Road & Track writer to name the car that he'd most like to drive across the USA, expecting to be told Ferrari 250GT or some such, and he replied "give me a Cadillac, with it's great ride, it's excellent Turbo Hydramatic, A/C and Cruise Control". The man knew what's what. Horses for courses, and all that.