Swiss tuner FAB Design aims to impress on home soil next week when it unveils a pair of AMG G-wagons at the 2015 Geneva Motor Show. The upgrades are tailored for a Mercedes-Benz G55 and G63 AMG, consisting of custom front and rear spoilers, large wheel arches housing a set of massive 23-inch rims, and revised side skirts. The cabin comes upholstered in leather, Alcantara and carbon fiber, while output has also been increased. The G55 now delivers 530 hp and 572 lb-ft of torque, and the G63 generates 620 hp and 605 lb-ft.