When we compare the Aston Martin DB7's and the Aston Martin DB9's specifications and ratings, The Aston Martin DB9 has the advantage in the areas of fuel efficiency and base engine power. Based on this comparison of the Aston Martin DB7's and the Aston Martin DB9's specifications and ratings, the Aston Martin DB9 is a better car than the Aston Martin DB7.
Engine Power and Fuel Efficiency Comparison
For engine performance, the Aston Martin DB7’s base engine makes 420 horsepower, and the Aston Martin DB9 base engine makes 540 horsepower. The DB7 is rated to deliver an average of 12 miles per gallon, while the DB9 is rated to deliver an average of 15 miles per gallon. Both have a highway range of 391 miles. Both models use gasoline.