2015 McLaren P1 GTR Dimensions, Size & Specs

The McLaren P1 GTR is slightly wider than the standard McLaren P1 road car. While the road-going P1 measures about 1,897 mm (74.6 inches) in width, the P1 GTR increases this to approximately 2,070 mm (81.5 inches). This increase in width is primarily due to the addition of wider aerodynamic bodywork and track-focused elements such as extended fenders and larger tires. The extra width improves the car's grip on the track by accommodating more substantial racing tires and enhancing aerodynamic stability at high speeds, making the P1 GTR distinctly more track-oriented.

The McLaren P1 GTR stands at approximately 1,141 mm (44.9 inches) tall, which is lower than many sports and supercars. This low height is crucial for minimizing aerodynamic drag and lowering the center of gravity. A lower car reduces air resistance and helps optimize downforce, which improves high-speed stability and cornering performance on the track. The GTR’s height complements its aggressive aerodynamic features such as a large front splitter, side skirts, and a massive rear wing, together boosting its track capabilities significantly compared to the road version.

The McLaren P1 GTR weighs approximately 1,490 kg (3,285 lbs) curb weight. This is lighter compared to the road-going P1 thanks to extensive use of lightweight materials such as carbon fiber and the removal of certain comfort features unnecessary for track use. The reduced weight significantly enhances acceleration, braking, and cornering capabilities, allowing the P1 GTR to exploit its 1,000+ horsepower output fully. The low weight combined with the hybrid powertrain makes the P1 GTR an exceptionally agile and quick track machine.

Fitting the McLaren P1 GTR into a standard home garage depends on the garage dimensions but can be challenging given the car's width of about 2,070 mm (81.5 inches) and low height of 1,141 mm (44.9 inches). Many standard home garages have widths around 2,400-2,700 mm (94-106 inches), so clearance might be tight but feasible. The car's length of 4,734 mm (186.4 inches) also requires sufficient depth. Additionally, the low height means owners must be cautious about garage entry ramps and overhead obstructions. Owners often customize garages to ensure a safe fit for such a low and wide hypercar.

The McLaren P1 GTR is a highly focused track car, designed primarily for performance rather than comfort or spaciousness. It features a two-seat cockpit, stripped down with racing bucket seats and minimalistic interiors to save weight. Cabin space prioritizes driver ergonomics and control over passenger comfort, resulting in a snug interior tailored to fit the driver and one passenger securely for track conditions. Storage space is extremely limited or non-existent compared to the road-going P1. Overall, the interior is functional and race-oriented rather than luxurious.

Compared to the standard McLaren P1, the P1 GTR is larger in several dimensions. The road P1 measures approximately 4,702 mm (185.1 inches) in length, 1,897 mm (74.6 inches) in width, and 1,118 mm (44 inches) in height, making the GTR slightly longer, wider, and taller. This increase primarily stems from race-focused aerodynamic enhancements, including a prominent rear wing, wider fenders to accommodate larger racing tires, and aggressive front splitters. These dimensional changes improve downforce and track stability but also result in a more imposing and specialized vehicle compared to the road-centric predecessor.

Dimensionally, the McLaren P1 GTR is comparable to many hypercars of its era but leans more toward track-specialist sizes. For example, it's similar in length and width to the Porsche 918 Spyder and LaFerrari but has more aggressive aerodynamic features that increase its width. Its low height at 1,141 mm (44.9 inches) is competitive for high downforce track cars. The P1 GTR’s size is thus optimized for extreme track performance rather than everyday usability, making it stand out in terms of dimension for a dedicated hypercar track weapon versus more road-friendly rivals.

The McLaren P1 GTR features a carbon fiber monocoque chassis that is both rigid and extremely lightweight, contributing to its competitive edge on the track. The chassis dimensions align with the overall compact length of 4,734 mm and a wide track width of 2,070 mm, which provides excellent lateral stability. The low ride height and wide stance aid in keeping the center of gravity low and optimized for high-speed cornering and rapid directional changes. These chassis features, combined with the aerodynamic body, allow the car to maximize tire contact and downforce, delivering outstanding track dynamics.

The McLaren P1 GTR is equipped with a fuel tank capacity of roughly 81 liters (21.4 US gallons). This capacity strikes a balance between weight saving and track usability, allowing the car to run for a reasonable duration at high performance without frequent refueling. The fuel system is designed to support the hybrid powertrain’s demanding power output during track use, ensuring consistent engine and electric motor performance. However, due to the car’s high-power nature and racing focus, fuel consumption is relatively high when driven aggressively, so planning refueling during longer track sessions is necessary.