The new Maserati Quattroporte is big news for the Italian marque. The car is kick-starting the firm’s ambitions to increase sales ten-fold, so the stakes have never been higher. Steve Sutcliffe pitches it against our favourite luxury car, the Jaguar XJ to see which is best. Read Autocar’s Maserati Quattroporte review – www.autocar.co.uk Read Autocar’s Jaguar XJ review – www.autocar.co.uk