McLaren M23 - Maiden F1 Title for the Woking-based Team

  • McLaren M23 formula

Used in six Formula 1 World Championship seasons, from 1973 to 1978, the McLaren M23 earned the status of a legend.

The Formula 1 title became a priority for McLaren

Designed by Gordon Coppuck, a British racing car designer and motorsport engineer, the McLaren M23 actually was a development of the M16 Indy 500 car and M19 F1 racer. The McLaren team successfully competed in various championships but still was short of winning the Formula 1 crown. Finally, the M23 brought a maiden title to the Woking-based team.

McLaren M23 formula Ford Cosworth 1973

McLaren M23 driven by Peter Revson

This amazing car was powered by Ford Cosworth engine, used as a fully stressed member with the suspension bolted directly to rear suspension. The suspension was also modified to meet demands of road tracks but the most visible difference was the addition of a large airbox to force air into engine intakes.

The maiden title was won in 1974

The new car, driven by Denny Hulme, debuted at 1973 South African Grand Prix and finished 5th. Over the season, Hulme scored one victory while his teammate Peter Revson won twice. McLaren finished 3rd in the Constructors’ Championship that year while Revson and Hulme were 5th and 6th respectively.

McLaren M23 Emerson Fittipaldi 1974

Emerson Fittipaldi won his second title driving the M23

The first year has been used a preparation for the season of 1974. Hulme remained with the team and was accompanied with Emerson Fittipaldi who arrived from Lotus and played an important role helping the team to make some small but probably decisive modifications to the McLaren M23. After scoring three wins, Fittipaldi became the Formula 1 champion. Hulme triumphed once and helped the team to win its maiden Formula 1 Constructors’ Championship title.

Competitive for a long time

In 1976 McLaren M23 was further developed. The new 6-speed gearbox was introduced what was a novelty in the series. Fittipaldi, who was teamed with Jochen Mass, failed to defend his title but finished the season as a runner-up to Niki Lauda. McLaren dropped to the 3rd position in the standings but it was obvious that things will improve in the following year.

McLaren M23 Ford Cosworth

1976 McLaren M23 cutaway

James Hunt arrived at the team as a replacement to Fittipaldi while Mass remained as a back-up. The 1976 season was very close and exciting after Hunt battled with Lauda until the last round. However, the British driver was able to win his only title beating the Austrian by a single point. McLaren finished 2nd in the Teams’ standings.

McLaren M23 was successful in other series

The McLaren M23 still was competitive but in 1977 failed to score a single win. Hunt and Mass scored some strong results before the car was replaced with a new M26 model in the middle of the season. They finished 3rd that year and had to wait almost a decade for another title.

James Hunt McLaren M23 formula Ford Cosworth

James Hunt won his only F1 title driving the McLaren M23

Interestingly, the McLaren M23 was used by some private teams in 1978 but wasn’t competitive enough and hasn’t scored points. The modified M23 also was used in the Australian Formula 5000 and competed with a lot of success. John McCormack won the 1977 title driving the Leyland-powered M23.

What do the numbers say?

During six years the McLaren M23, which never was the most technically advanced F1 car, raced in 83 Formula 1 Grand Prix races and recorded 16 wins, 14 pole positions and 10 fastest laps, winning two Drivers’ Championship titles and one Constructors’ Championship.

McLaren M23 formula

McLaren M23 was constantly developed and modified

Constant development and reliability made this car competitive for a long time. The McLaren M23 definitely deserved a special place not just in the history of the team but also in the history of the Formula 1.

1973 McLaren M23 technical specifications

ChassisAluminium monocoque, fiberglass body
Front suspensionDouble wishbones, coil springs over dampers, anti-roll bar
Rear suspensionReversed lower wishbones, single top links, twin radius arms, coil springs over dampers, anti-roll bar
Wheelbase2.565 mm
Track (front & rear)1.575 mm / 1.578 mm
EngineFord Cosworth DFV, 2.993cc, 90° V8 naturally aspirated, mid-mounted
Power465 bhp / 347 kW
GearboxHewland FG 400, 5-speed manual
BrakesVentilated discs
Weight575 kg

Video – Emerson Fittipaldi and McLaren m23