The McLaren P1 is a limited production plug-in hybrid sportscar by British automotive manufacturer McLaren Automotive. The concept car debuted at the 2012 Paris Motor Show.Deliveries to retail customers began in the UK in October 2013. The entire P1 production of 375 units was sold out by November 2013. A track-only version of the P1, the McLaren P1 GTR, was unveiled at the 2015 Geneva Motor Show. Production of the GTR will be limited to 35 units and only the 375 McLaren P1 owners will be invited to buy one.

It is considered to be the long-awaited successor to the McLaren F1, utilizing hybrid power and Formula 1 technology. It does not have the same three seat layout as its predecessor. The design of the headlights is very similar to the shape of the McLaren logo. Just like the McLaren F1 road car of 1992, the McLaren P1 is a mid-engine, rear-wheel drive design that uses a carbon fibre monocoque and roof structure safety cage concept called MonoCage, which is a development of the MonoCell used in the current MP4-12C and MP4-12C Spider upgrade that came out in early 2012.

The P1 features a 3.8-litre twin-turbocharged V8 petrol engine that is only similar to the MP4-12C motor in its displacement. The twin turbos boost the petrol motor at 2.4 bar to deliver 727 bhp (542 kW) and 719 Nm (531 lb ft) of torque at 7500 rpm, combined with an in-house developed electric motor producing 176 bhp (131 kW) and 260 Nm (192 lb ft). With both motors, the P1 will have a total power and torque output of 903 bhp (916 PS) and 978 Nm (722 lb ft) of torque respectively.

The P1 comes with Formula 1 derived features such as the Instant Power Assist System (IPAS), which will give an instant boost in acceleration via the electric motor, a Drag Reduction System (DRS) which operates the car’s rear wing, thereby increasing straight line speed, and a KERS. Both of these features (IPAS, DRS) are operated via two buttons on the steering wheel.

The P1 will go from 0 to 100 km/h (62 mph) in 2.8 seconds, 0 to 200 km/h (124 mph) in 6.8 seconds, and 0 to 300 km/h (186 mph) in 16.5 seconds, making it a full 5.5 seconds faster than the McLaren F1.[11] It completes a standing quarter mile in 9.8 seconds at 245 km/h (152 mph). The Mclaren P1 is capable of reaching a top speed of 395 km/h (247 mph) but it is electronically limited to a top speed of 350 km/h (217 mph) . The P1 has a dry weight of 1,395 kg (3,075 lb), giving it a power-to-weight ratio of 647 bhp/tonne. It has a kerb weight of 1,490 kg (3,280 lb) which translates to of 606 bhp/tonne. Actual kerb weight (full tank of gas, no luggage or people) of US-spec vehicles is about 3400 lb. The P1 also features bespoke Pirelli P-Zero Corsa tyres and specially developed carbon-ceramic brakes from Akebono. It takes 6.2 seconds to brake from 299 km/h (186 mph) to standstill, during which it will cover 246 metres. From 97 km/h (60 mph), it will cover 30.2 metres.