HPI Vehicle Parts (207). Manufacturer: HPI Racing. SPECS: Length: 17.50" (445mm) Width: 8.00" (200mm) (at center) Height: 5.00" (126mm) (un-cut) Wheelbase: 10-1/8" (257mm). INCLUDES: One Mustang GT-R Lexan® body One black rear wing One decal sheet One window mask sheet One instruction sheet.