Mercedes-AMG One

The Mercedes-AMG One (R50, originally called Project One) is a limited-run plug-in hybrid sports car from Mercedes-AMG that uses technology derived from Formula One. The concept, named Project One, was first shown at the 2017 International Motor Show Germany, where it was presented by Lewis Hamilton—then a three-time Formula One World Drivers' Champion and Mercedes driver—alongside Mercedes-Benz head Dieter Zetsche. The production model was revealed on 1 June 2022, with assembly starting in August of that year.

Development took place at Mercedes-AMG in Affalterbach, Germany. The 2017 concept had specifications nearly identical to the 2022 production car. Mercedes-AMG stated that the production version would be tested for performance, durability, and capability at its proving grounds and on race circuits. Tobias Moers, head of Mercedes-AMG, said that when the time was right, Lewis Hamilton—who contributed to the car's development—would join the team of development drivers testing prototypes.

Production was capped at 275 units, each priced at US$2.72 million, and all were sold before deliveries began. Mercedes-AMG received orders more than four times that number but chose not to increase production to preserve exclusivity. Each car was hand-built, with deliveries starting in late 2022. The first car was delivered on 16 January 2023, featuring a paint scheme inspired by the F1 W12 E Performance livery.

The exterior is shaped primarily for aerodynamics. Notable features include movable slats in the front wheelhouses, a two-part extendable rear wing with a DRS system, active flaps on the front diffuser adjustable per driving program, large front air inlets, a roof-mounted air intake, a large aerodynamic fin running down the rear half of the car, and aerodynamically optimized wheels to generate downforce for high-speed cornering.

The powertrain produces 782 kW (1,063 PS; 1,049 hp) from a hybrid system closely related to modern F1 cars, combining an internal combustion engine with four electric motors. The engine is a modified version of the Mercedes-Benz PU106B Hybrid, a 1.6-litre turbocharged 90-degree V6, based on the Mercedes-AMG F1 W06 as confirmed by board member Ola Källenius. Modifications were made to meet idle and redline regulations: idle is set at 1,280 rpm and the redline at 11,000 rpm. The engine lasts about 50,000 km (31,000 mi), after which owners must return the car for a refurbishment. The internal combustion engine alone produces 422 kW (574 PS; 566 hp); torque figures are considered unmeasurable due to the complex drivetrain. Top speed is electronically limited to 219 mph (352 km/h).

The four electric motors consist of a 120 kW (163 PS; 161 hp) MGU-K on the crankshaft, a 90 kW (122 PS; 121 hp) MGU-H on the turbocharger, and two 120 kW (163 PS; 161 hp) motors on the front axle. The MGU-K generates electricity during braking, while the MGU-H reduces turbo lag by keeping the turbine spinning at lower engine speeds and recovers waste exhaust energy. The front motors provide all-wheel drive. Together, the electric motors contribute 360 kW (489 PS; 483 hp) to the total output.

The transmission is a 7-speed single-clutch automated manual with a 4-disc carbon racing clutch, similar to that used in modern F1 cars, sending power to the rear wheels. Engineers chose a single-clutch over a dual-clutch to keep weight down and because of concerns about the dual-clutch’s ability to handle the high-revving engine.

The suspension is a five-link aluminium coil-over setup with two transverse adjustable push-rod spring struts and adaptive damping. Rear axle links are shaped for better aerodynamics. The brakes are hydraulic AMG carbon-fibre ceramic high-performance composite discs: 398 x 38 mm front with 6-piston aluminium fixed calipers, and 380 x 34 mm rear with 4-piston aluminium fixed calipers. The car also includes an electric parking brake, ABS, brake assist, and 3-stage ESP. The wheels are unique 10-spoke forged aluminium alloys with NACA carbon-fibre openings for brake cooling and downforce, measuring 19 inches front and 20 inches rear, with F1-style centre-lock nuts. Tires are semi-slick Michelin Pilot Sport Cup 2Rs, size 285/35 ZR 19 front and 335/30 ZR 20 rear.