The 911 offers all wheel drive to maximize traction under poor conditions, especially in ice and snow. The Vanquish doesn’t offer all wheel drive.
Both the 911 and the Vanquish have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.
The 911 comes with a full 4 year/50,000 mile basic warranty, which covers the entire car and includes 24 hour roadside assistance. The Vanquish’s 3 year basic warranty expires 1 year sooner.
There are almost 17 times as many Porsche dealers as there are Aston Martin dealers, which makes it much easier should you ever need service under the 911’s warranty.
The flat cylinder configuration of the boxer engine in the 911 lowers its center of gravity, enhancing handling stability. The Vanquish doesn’t offer a boxer engine configuration.
Regenerative brakes improve the 911’s fuel efficiency by converting inertia back into energy instead of wasting it. The Vanquish doesn’t offer a regenerative braking system.
In heavy traffic or at stoplights the 911’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The Vanquish doesn’t offer an automatic engine start/stop system.
The 911 offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The Vanquish doesn’t offer an active sway bar system.
For better maneuverability, the 911’s turning circle is 1.3 feet tighter than the Vanquish’s (36.4 feet vs. 37.7 feet).
The Porsche 911 may be more efficient, handle and accelerate better because it weighs about 450 to 800 pounds less than the Aston Martin Vanquish.
The 911 is 7.9 inches shorter than the Vanquish, making the 911 easier to handle, maneuver and park in tight spaces.
To almost totally eliminate engine vibration in the passenger area, the 911 w/Sport Chrono (except w/o Sport Chrono) has an electronically controlled liquid-filled front engine mount. A computer-controlled electric current in the liquid changes its viscosity, allowing the mount to dampen the engine completely at all RPMs. The Vanquish uses conventional solid rubber engine mounts.
The 911’s instruments include an oil pressure gauge and a temperature gauge – which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The Vanquish does not have an oil pressure gauge.
Porsche Entry and Drive optional on the 911 allows the driver to unlock the doors, trunk and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the car in bad weather or making a hurried start to your trip. The Aston Martin Vanquish doesn’t offer an advanced key system.
Heated windshield washer nozzles are standard on the 911 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Vanquish doesn’t offer heated windshield washer nozzles.
To improve rear visibility by keeping the rear window clear, the 911 offers an optional rear wiper. The Vanquish doesn’t offer a rear wiper.
In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The 911 offers available headlight washers to keep headlight output high. The Vanquish doesn’t offer headlight washers.
To help drivers see further while navigating curves, the 911 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Vanquish doesn’t offer cornering lights.
When the 911 is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Vanquish’s mirror doesn’t automatically adjust for backing.
The 911 offers optional automatic dimming rear and side view mirrors which automatically darken quickly when headlights shine on them, keeping following vehicles from blinding or distracting the driver. The Vanquish offers an automatic rear view mirror, but its side mirrors don’t dim.
The 911’s standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Vanquish doesn’t offer dual zone air conditioning.
The 911’s available GPS navigation system has a real-time traffic update feature that offers alternative routes to automatically bypass traffic problems. (Service available in a limited number of metro areas.) The Vanquish’s navigation system doesn’t offer real-time traffic updates.
With optional voice command, the 911 offers the driver hands free control of certain systems in the car by simply speaking. The Vanquish doesn’t offer a voice control system.