Mercedes G63 For Rent in Dubai. Launched in 1973, the G class is Mercedes’ longest serving model, and the only Mercedes model not to have an ‘end of production date’ planned. Whilst its unusual, angular profile has always made it something of a black sheep amongst the sleek lines of the Mercedes family, those who know and drive the G class frequently become devoted plans. Much of that loyalty is born of the incredible attention to quality that characterises every detail. Every single G Wagon is hand made in Austria, at the Magna Steyr plant in Graz.