The transition from the DB4 to the DB5 took place smoothly in July 1963. From an aesthetic point of view, the bodywork of the new DB5 was very reminiscent of the lines of the DB4. On the other hand, the engine was quite different: the displacement was increased from 3670 to 3995cc and the power increased from 240 to 282 hp. During the two years of production there were some developments to the transmission and the Vantage version appeared with a 314 hp at 5750 rpm.