What the haute horology can achieve, is no limitation for the proud family of automakers. Especially the Italian luxury badges don’t hesitate to celebrate a top achievement. So does Maserati to honor the 70th anniversary of its stall’s first Indianapolis 500 trophy. The special edition Quattroporte Sport GT S rushes the stage with a lower and sportier appearance and an overhauled 4.7 liter V8 engine, upgraded and refined to 433 horsepower to accentuate its presence with a fitting roar. Besides the typical performance enhancements, the GT S has been spend a technical gimmick for a further impressive sound: exhauster flaps which remain on the outside and can be flapped open with a push of a button allowing a shivering mean sound. Definitely worth a test drive.