Definition
The Aston Martin DBR4 is a single‑seater sports‑prototype racing car produced by the British manufacturer Aston Martin for competition in Formula One during the early 1950s.
Overview
Developed under the direction of company owner David Brown, the DBR4 was intended to replace the DB3S in the World Championship. It made its debut at the 1954 British Grand Prix but proved uncompetitive against contemporary Grand Prix machinery. Only a handful of chassis were built, and the car was retired from Formula One after the 1955 season, later seeing limited use in non‑World Championship events and historic racing.
Etymology / Origin
The designation “DBR” combines the initials of David Brown, the proprietor of Aston Martin, with the letter “R” denoting “Racing.” The numeral “4” indicates its position in the sequence of post‑war DB racing models, succeeding the DB3S and preceding the later DBR1.
Characteristics
| Feature | Details |
|---|---|
| Chassis | Tubular steel space‑frame with aluminum body panels; wheelbase approx. 2 450 mm. |
| Engine | 2.5 L (2 497 cc) inline‑six, derived from the production DB4 road car; dual‑overhead‑camshaft, naturally aspirated, output roughly 210 bhp at 7 200 rpm. |
| Transmission | 4‑speed manual gearbox, rear‑wheel drive. |
| Suspension | Front: double wishbones with coil springs; Rear: live axle with semi‑elliptic leaf springs and hydraulic dampers. |
| Brakes | Hydraulic drum brakes on all four wheels. |
| Weight | Approximately 660 kg (1 455 lb). |
| Performance | Top speed around 250 km/h (155 mph); lap times were slower than contemporaries such as the Mercedes‑W196 and Maserati 250F. |
| Racing Record | 1954–1955 World Championship: entered in 6 Grands Prix, achieved best finish of 6th place (1954 French Grand Prix). No points were scored. |
Related Topics
- Aston Martin DBR1 – Successful 1950s sports‑car racer, winner of the 1959 24 Hours of Le Mans.
- Aston Martin DB3/DB3S – Predecessor Formula Two and sports‑car models.
- Aston Martin DB4 – Road‑car model whose engine architecture was adapted for the DBR4.
- Formula One (1950s era) – Context of Grand Prix competition during which the DBR4 participated.
- David Brown (Aston Martin) – Chairman of Aston Martin who oversaw the development of the DBR series.