- 5,935 cc 5.9 liters V 12 front engine with 89 mm bore, 79.5 mm stroke, 10.3 compression ratio, double overhead cam and four valves per cylinder
- Premium unleaded fuel 91
- Fuel economy EPA highway (mpg): 19 and EPA city (mpg): 12
- Multi-point injection fuel system
- 21.1 gallon main premium unleaded fuel tank
- Power: 343 kW , 460 HP SAE @ 6,800 rpm; 400 ft lb , 542 Nm @ 5,500 rpm

2003 Aston Martin Vanquish Base Coupe Handling, Ride & Braking Standard Features
- Four-wheel ABS
- Four disc brakes including four ventilated discs
- Electronic brake distribution
- Electronic traction control via ABS & engine management
- Immobilizer
- Limited slip differential
- Full-size alloy rim internal spare wheel
- Stability control
- Wishbone front and rear suspension independent with stabilizer bar and coil springs
- Tire kit

2003 Aston Martin Vanquish Base Coupe Exterior & Aerodynamics Standard Features
- Body side molding
- Body color front and rear bumpers
- Coefficient of drag: 0.35
- Driver and passenger power heated partial-painted door mirrors
- External dimensions: overall length (inches): 183.7, overall width (inches): 75.7, overall height (inches): 51.9, wheelbase (inches): 105.9, front track (inches): 60 and rear track (inches): 60.2
- Front fog lights
- Projector beam lens halogen bulb headlights
- Luxury trim leather on gear knob, alloy on doors and alloy on dashboard
- Metallic paint
- Fixed rear window with defogger
- Tinted glass on cabin
- Weights: curb weight (lbs) 4,045
- Windshield wipers with variable intermittent wipe and rain sensor

2003 Aston Martin Vanquish Base Coupe Interior Standard Features
- 12v power outlet: front and 1
- Air conditioning with climate control
- Power antenna
- Peripheral anti-theft protection
- Becker audio system with AM/FM, cassette, Disc Auto-changer and six-disc remote changer
- Automatic drive indicator on dashboard
- Cargo area light
- Cargo capacity: rear seat down (cu ft): 8.5 and all seats in place (cu ft): 6
- Clock
- Computer with average fuel consumption and instantaneous fuel consumption
- Full dashboard console with open storage box , full floor console with covered storage box
- Delayed/fade courtesy lights
- Door ajar warning
- Door pockets/bins for driver seat and passenger seat
- External temperature
- Floor covering: carpet in load area
- Floor mats
- Driver and passenger front airbag with occupant sensors intelligent
- Sports heated electrically adjustable driver and passenger seat with lumbar adjustment, three adjustments and tilt adjustment
- 3-point reel front seat belts on driver seat and passenger seat with pre-tensioners
- Front seat center armrest
- Lockable glove compartment
- Two height adjustable head restraints on front seats
- Headlight control
- Internal dimensions: front headroom (inches): 35.4, front hip room (inches): 57.1 and front leg room (inches): 43.3
- Low fuel level warning
- Low tire pressure indicator
- Low washer fluid level warning
- Remote power locks
- Vehicle speed proportional power steering
- Front power windows with two one-touch , rear power windows
- Front reading lights
- Automatic operation rear view mirror
- Remote fuel filler door release
- Remote control remote trunk/hatch release
- Leather seat upholstery with additional leather
- Seating: two seats
- Six speaker(s)
- Leather covered steering wheel with tilt adjustment and telescopic adjustment
- Tachometer
- Driver vanity mirror , illuminated passenger vanity mirror
- Ventilation system with recirculation setting and micro filter