In comparing the Aston Martin DB9's and the Aston Martin Vanquish's specifications and ratings, The Aston Martin Vanquish has the advantage in the areas of fuel efficiency and base engine power. Based on this comparison of the Aston Martin DB9's and the Aston Martin Vanquish's specifications and ratings, the Aston Martin Vanquish is a better car than the Aston Martin DB9.
Engine Power and Fuel Efficiency Comparison
For engine performance, the Aston Martin DB9’s base engine makes 540 horsepower, and the Aston Martin Vanquish base engine makes 568 horsepower. The DB9 is rated to deliver an average of 15 miles per gallon, with a highway range of 391 miles. The Vanquish is rated to deliver an average of 16 miles per gallon, with a highway range of 431 miles. This gives the Aston Martin Vanquish the fuel efficiency and maximum range advantage over the Aston Martin DB9. Both models use gasoline.
Passenger Space Comparison
The Aston Martin DB9 and Aston Martin Vanquish are comparable in regards to front head room, front shoulder room and front leg room.