It's always interesting what 'regular' magazines say when they test drive Maserati's and I must say, having driven the QP and Ghibli each in V6 diesel and V6 petrol forms, I find is reasonably well balanced. The only glitch is the fact that you cannot get 4WD in RHD. See what you think:
http://www.telegraph.co.uk/cars/maserati/quattroporte/
http://www.telegraph.co.uk/cars/maserati/quattroporte/