I presume Cadillac is regarded as competition to Maserati. In my mind they are worlds apart, although some of the new ones are interesting I suppose. I have driven a few Cadillacs as rentals and company vehicles (I have lived in the USA on and off over the years) and I didn't like them much, too heavy, suspension too soft, massive engines producing hardly any HP lovely interiors, and good stereos but never exciting, however often highly regarded by Americans. I also drove a GM 300C for 2 years and it looked like a gangster car, and it was ok but was nothing special, had a 5l mustang and a T-bird (same engine I think) and they didn't really go that fast, and neither very nice inside, looked ok, and sounded good, and would spin the wheels easy enough (mostly because they were so heavy).