 The P261 at the 2007 Silverstone Classic | |||||||||
| Category | Formula One/Tasman | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Constructor | British Racing Motors | ||||||||
| Designer(s) | Tony Rudd | ||||||||
| Predecessor | BRM P61 | ||||||||
| Successor | BRM P67 / BRM P83 | ||||||||
| Technical specifications | |||||||||
| Chassis | Duralumin monocoque | ||||||||
| Suspension (front) | Double wishbone, with inboard spring/damper units | ||||||||
| Suspension (rear) | Double wishbone, with outboard coilover spring/damper units | ||||||||
| Axle track | F: 54 in (1,372 mm) (adj.) R: 53 in (1,346 mm) (adj.) | ||||||||
| Wheelbase | 91 in (2,311 mm) (adjustable) | ||||||||
| Engine | BRM P56 1,498 cc (91.4 cu in) V8 Naturally aspirated mid-mounted | ||||||||
| Transmission | BRM P72 6-speed manual | ||||||||
| Weight | 1,028 lb (466.3 kg) | ||||||||
| Fuel | Shell | ||||||||
| Tyres | Dunlop | ||||||||
| Competition history | |||||||||
| Notable entrants | Owen Racing Organisation Reg Parnell Racing Bernard White Racing | ||||||||
| Notable drivers |  Graham Hill Richie Ginther Jackie Stewart Bob Bondurant Innes Ireland Piers Courage Chris Irwin David Hobbs | ||||||||
| Debut | 1964 Monaco Grand Prix | ||||||||
| First win | 1964 Monaco Grand Prix | ||||||||
| Last win | 1966 Monaco Grand Prix | ||||||||
| Last event | 1968 Italian Grand Prix | ||||||||
| |||||||||
| Constructors' Championships | 0 (2nd: 1964; 1965) | ||||||||
| Drivers' Championships | 0 (2nd: 1964; 1965 - Graham Hill) | ||||||||
| n.b. Unless otherwise stated, all data refer to Formula One World Championship Grands Prix only. | |||||||||
The BRM P261, also known as the BRM P61 Mark II, is a Formula One motor racing car, designed and built by the British Racing Motors team in Bourne, Lincolnshire, England. The BRM P261 was introduced for the 1964 Formula One season, and its design was an evolution of Tony Rudd's one-off BRM P61 car of 1963. The P261 had a relatively long racing career; variants of the car were still being entered for Formula One World Championship Grands Prix as late as 1968. During the course of their front-line career, BRM P261s won six World Championship races, in the hands of works drivers Graham Hill and Jackie Stewart, and finished second in both the Drivers' and Constructors' Championship standings in 1964 and 1965. Stewart, Hill and Richard Attwood also used works P261s to compete in the Tasman Series in 1966. The BRMs dominated, with Stewart winning four, Hill two, and Attwood one of the 1966 Tasman Series' eight races.[1] Stewart also won the title. The works-backed Reg Parnell Racing team returned in 1967 with Stewart and Attwood, where Stewart added another two wins to his tally. In terms of races won and total championship points scored, the P261 was the most successful car in BRM's history.[2]