The Maserati 2.24v marks a new stage in the Biturbo saga. Having dropped the name since the 222, as if to start afresh, the ‘224’ is more than just an evolution reserved exclusively for the Italian market. It was a real milestone model, introducing a large number of new features that would also be found on the Ghibli II. Among the most visible were the new rocker panels and a second exhaust system embedded in the new bumpers. Gone are the days when fog lamps were simply added under the headlamps; on the 224, they are well integrated into the bodywork. The first Biturbo S models were distinguished from the others by their small rear spoiler. Now that this distinction has disappeared, all the models have this accessory on their rear trunks. Except that here, it’s complemented by a rather imposing spoiler. As with the rest of the Biturbo range, in 1991 the 2.24V model underwent a redesign that mainly affected the front end, with new headlights, bumper, grille, mirrors, wheels and aerodynamic spoiler at the base of the windscreen. From a mechanical point of view, power has been slightly reduced (- 5 bhp) due to the use of a catalytic converter.