The official line is that the GT is designed to be “the most luxurious and relaxing of any McLaren to date” and is clearly aimed at those buyers who, although affluent, need it to earn its keep through being more practical than a mere weekend toy. To that end, it gets a glass hatchback at the rear giving access to a second luggage compartment behind the seats, which adds 8 cubic feet of storage. In conjunction with the existing front trunk, that makes for a total of 12 cubic feet of carrying capacity.