Launched in 1951, the DB3 was never the successful race car Aston Martin hoped it would be. It was powered by a Lagonda straight-6 engine with 133 HP, which only proved to be very unsuccessful, but that was partly rectified in 1952 when Aston Martin replaced the 2.6 liter engine with a larger one: a 2.9 liter with 153 HP. These changes didn’t drastically improve the DB3, but it improved by placing 2nd, 3rd, and 4th at Silverstone in May 1952 and was then forced out of Le Mans.
After that, Aston Martin had to take some serious measures to save the failing race car. They asked designer A.G. Watson for some assistance and the following year - in 1953 - the company came up with a new prototype in Charterhill, UK. This new version was called the DB3S and featured a lighter chassis with a reduced wheelbase and a few other modifications that helped it be more successful on the race track.
The new DBS3 stayed in production until 1956 during which Aston Martin produced a total of 31 units: 11 work cars - that have never been raced - and 20 cars being sold for customer use.
Hit the jump to read more about the Aston Martin DB3S.