The salesman might be a nice guy but he's blowing a lot of smoke. The Quattroporte is restricted to 168 mph. Unrestricted it would go faster, but 195 mph??! You're talking about a 4400 lb car with a 400 hp engine. Maserati MC12 weighs 2943 lb with a 630 hp engine and goes 205 mph. Not exactly a grocery getter. Anyway, unless you're commuting on the salt flats I guess it's not important. Beautiful looking cars, congrats. I said around - at those speeds, it doesn't really matter and I'll probably never reach them. He said you'd gain 15MPH. I don't remember what he said the restricted top speed was, though.