The McLaren P1 GTR is designed as McLaren's "ultimate track focused driver's car", taking the form of a track hypercar based on the McLaren P1. Available only to P1 owners, the P1 GTR's production started upon the completion of the 375th and final P1. The McLaren P1 GTR was built to celebrate 20 years since McLaren's victory at the 1995 24 Hours of Le Mans using the McLaren F1 GTR.
Only 58 units of the P1 GTR were made, several of them having been converted for road use. In 2016, the McLaren P1 LM, a 5-unit homologated run version of the P1 GTR, was unveiled.
|“||Among elite supercar heritage the name of McLaren stands tall and, at the blistering edge of performances, lives the P1 GTR. Named after the McLaren F1 GTR, which won the 1995 24 Hours of Le Mans, the GTR is a race-bred hypercar with clear intent to rule the track. As part of McLaren’s GTR Driver Program, owners can receive training in preparation to participate in exclusive racing events. The GTR brings more power and more downforce, as well as a race-prepared suspension to the hypercar table. Look closely and you will notice the mirrors have been moved to the A-pillars to increase visibility and reduce drag. If you are looking for the ultimate offering from the U.K., look no further, the P1 GTR is here.||”|
— forzamotorsport.net 
McLaren states that the McLaren P1 GTR is the most powerful McLaren car to date, with an updated 3.8L (3,799 cc) McLaren M838TQ twin-turbocharged V8 engine producing 789 hp (588 kW) at 7,500 rpm with 20.58 psi (1.42 bar) of boost available. The McLaren ECU electric motor has also been updated to produce 197 hp (147 kW), bringing the total output to 986 hp (735 kW) at 7,500 rpm and 738 ft·lb (1001 N·m) at 4,000 rpm, eclipsing the McLaren Senna's 789 hp (588 kW) and 590 ft·lb (800 N·m).
At 3186 lb (1445 kg), the P1 GTR weighs at least 110 lb (50 kg) less than the P1, complete with a power-to-weight ratio of 682 hp (509 kW) per tonne, carbon fiber roof panels, carbon fiber engine bay cover, Pirelli P Zero Corsa slick tires, and a fixed rear wing that sits at least 400 mm above the sculpted rear bodywork. This new wing works together with the front-mounted LTR ducts (aerodynamic flaps) in front of each front wheel to generate a downforce of up to 1455 lb (660 kg) at 150 mph (241 km/h). The wing can still be operated via the Drag Reduction System (DRS), trimming the tilt angle from 32° to 0° at the push of a button on the steering wheel. The rear features large twin exhaust pipes formed from an Inconel and titanium alloy.
Each P1 GTR is customized with a different livery. For instance, the XP7 GTR prototype bears a livery, marked #51, that is a homage to the yellow-and-green #51 McLaren F1 GTR, one of the five F1 GTRs that dominated the 24 Hours of Le Mans in the historic debut by McLaren in 1995.
The P1 GTR uses the same 7-speed dual-clutch automatic transmission as the regular P1, also driving the rear wheels. The P1 GTR is capable of 0 - 60 mph (97 km/h) in 2.4 seconds, 0 - 100 mph (161 km/h) in 4.5 seconds, and a top speed exceeding 225 mph (362 km/h), which is always exceeded in each Forza title except when under homologation rules.
|Speed 8.7||Handling 7.0||Acceleration 9.5||Braking 7.0||P 913|
|Unlock: Purchase from the car dealer||1,500,000 CR|
|DLC: Requires the Hot Wheels Car Pack|
|Top Speed: 233.6 mph (375.9 km/h)||Division: None|
|Acceleration 0-60 mph (0-97 km/h): 2.400 s||0-100 mph (0-161 km/h): 4.500 s|
|Braking 60-0 mph (97-0 km/h): 98.1 ft (29.9 m)||100-0 mph (161-0 km/h): 238.7 ft (72.8 m)|
|Lateral G's 60 mph (97 km/h): 1.42 g||120 mph (193 km/h): 1.66 g|
The McLaren P1 GTR, as is the Ferrari FXX K to the Ferrari LaFerrari, acts as a more handling/braking-focused version of the McLaren P1 made specially for the track. With a more powerful powertrain and less weight, as well as a rear wing for more downforce, the P1 GTR gains the ability to steer as sharply as 1.6 lateral Gs. 0-60 mph (97 km/h) is trimmed down to 2.4 seconds, and 0-100 mph (161 km/h) is also cut down to 4.5 seconds. Due to the increased downforce, the top speed of the P1 GTR is reduced to 234 mph (376 km/h). For some reason, though, the in-game version of the car is incorrectly configured, with the dashboard and car not being put in Race Mode (with the rear wing not functioning like it should), hence why the P1 GTR does not actually perform as well as it would be expected (with worse braking and handling performance than expected), even though the LaFerrari is inferior to the P1 on most tracks, which should also logically make the FXX K slower than the P1 GTR on most tracks.
- The McLaren P1 GTR used in the game is the XP7 GTR prototype, evidenced by the "XP7 GTR" text if one is to look inside the car by the driver's side.
- The McLaren P1 GTR has several inconsistencies in-game:
- The carbon fiber sides can't be painted with decals at all.
- The daytime running lights do not function correctly in-game.
- The McLaren P1 GTR's rear wing is also nonfunctional. For instance, its Drag Reduction System (DRS) also does not function at all in-game.
- The McLaren P1 GTR is the only non-racing car from the Hot Wheels Car Pack in Forza Motorsport 6 that was not included in Forza Horizon 3.
|Weight: 3296 lb (1495 kg)||Power: 903 hp (673 kW)|
|Front: 42%||Torque: 723 ft·lb (980 N·m)|
2015 McLaren P1 GTR
|Type: Pre-Tuned||Drive: RWD|
|Weight: 3186 lb (1445 kg)||Power: 986 hp (735 kW)|
|Front: 41%||Torque: 738 ft·lb (1001 N·m)|
- ↑ Introduction - McLaren Ultimate Series - P1™ GTR
- ↑ Road legal P1 GTR - P1 GTR road legal | MadWhips
- ↑ Description - Forza Motorsport - Hot Wheels Car Pack
- ↑ Livery homage - The Harrods McLaren Goes to Goodwood | DrivingLine
- ↑ XP7 GTR marking
- ↑ Real life P1 GTR with correctly-functioning daytime running lights - DriveTribe
|Forza Motorsport 7 - Cars|