Yes, a 5000GT , and it couldn't do 185 unless you took it to the top of a mountain and just gave it a push ..

168 mph top speed according to Maserati. Of course he might have had it modified, but to get another 17 mph at that top end level where wind resistance / aerodynamics are a bigger enemy, you need a hell of a lot more HP ( it's not a proportional equation ) , so not sure what he could have done to it if indeed it attained 185.

But the line in the lyrics wouldn't rhyme so he would have had to come up with something else..