The development work on the Aston Martin DB4 started in 1956, at the same time as the DB Mark III. The key people involved in the development of the DB4 were General Manager John Wyer, Chassis Designer Harold Beach, and Engine Designer Tadek Marek. Every major component in the Aston Martin DB4 was new. The four-seater body was designed by Carrozzeria Touring of Milan, using their ‘Superleggera’ construction method in which aluminium panels are fixed to a tubular frame built onto a substantial platform chassis. Tadek Marek designed a new 3.7-litre, straight six engine. The all alloy, six-cylinder engine had twin overhead camshaft. It developed 240 horsepower and 240 lbs-ft of torque.
The Aston Martin DB4 Saloon was shown at the London Motor show in 1958, sharing a stand with the DB Mark III. The DB4 heralded a new era for Aston Martin and put the company back in competition with other high performance sports car manufacturers. The DB4 was the first production car capable of 0-100-0 mph in under 30 seconds. DB4 could accelerate from 0 to 6o mph in 9 seconds and was claimed to reach the 100 mph mark in 21 seconds. The top speed was 140 mph. Aston Martin DB4 convertible was announced at the London Motor Show in 1961. Throughout its production life the DB4 range was gradually developed, adding a GT version and some significant model year changes (often referred to as series 2, 3, 4 and 5) before finally being replaced by the DB5.
- 3670 cc
- 240 bhp / 5000rpm
- 240 lbs-ft / 4200rpm
- 4-speed manual with optional overdrive
- Borg-Warner 3-speed automatic (optional)
- Front: upper-and-lower A-arms, coil springs, anti-roll bar
- Rear: live axle, Watt linkage, trailing links, coil springs
- Dunlop Servo assisted brakes
- Solid discs front and rear
- 4480 x 1676 x 1321 mm (Saloon)
- 4480 x 1676 x 1323 mm (Convertible)
- 1308 kg
- 140 mph
- 9 seconds