The crew from Inden Design have launched a new (and very expensive) widebody treatment along with some performance upgrades for the Mercedes-Benz SL63 AMG hardtop roadster.According to the tuner, the basic wide body kit is priced at �19,000, but to complete the look you'll have to dig out another �3,500 for the bonnet, �800 for the rear diffuser in carbon fiber and �999 for the front apron. And