Certified Benz & Beemer Compares 2007 Mercedes Benz SL-Class VS 2007 Aston Martin Near Scottsdale, AZ

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2007 Mercedes Benz SL-Class

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VS

2007 Aston Martin

Safety Comparison

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For enhanced safety, the front seat shoulder belts of the Mercedes SL Class are height adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Aston Martin Vanquish S doesn’t offer height adjustable seat belts.

The SL Class has standard front seat tall, head-protecting side-impact airbags, which act as a forgiving barrier between the passengers and the door. Combined with high-strength steel door beams this system increases protection from broadside collisions. The Vanquish S doesn't offer side-impact airbags or side airbag protection for the head.

Using vehicle speed sensors, smart airbags in the SL Class deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The Vanquish S’ airbags don’t have smart features and will always deploy full force.

The SL Class has a standard Electronic Stability Program (ESP), which uses the antilock brake hardware along with powerful software and additional sensors to detect the beginning of a skid. The ESP then intervenes by automatically applying the brake at one appropriate wheel, preventing a skid. The Vanquish S doesn’t offer skid prevention. A National Highway Traffic Safety Administration study showed that skid control systems reduced single-vehicle car crashes by 30%.

The SL Class has standard Tele Aid, which uses a global positioning satellite (GPS) receiver and a cellular system to get driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The Vanquish S doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies.

Both the SL Class and the Vanquish S have standard driver and passenger frontal airbags, front seatbelt pretensioners, four-wheel antilock brakes and traction control.

Warranty Comparison

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The SL Class comes with a full 4 year/50,000 mile basic warranty, which covers the entire car. The Vanquish S’ 3 year basic warranty expires 1 year sooner.

The SL Class comes with free roadside assistance for as long as you own your car. Mercedes will send help if you run out of gas, need a jump start, lock your keys in or need any assistance on the road. Aston Martin doesn’t give free roadside assistance for the Vanquish S.

There are almost 26 times as many Mercedes dealers as there are Aston Martin dealers, which makes it much easier to get service under the SL Class’ warranty.

Engine Comparison

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The SL55 AMG’s standard 5.4 supercharged V8 produces 106 lbs.-ft. more torque (531 vs. 425) than the Vanquish S’ 5.9 DOHC V12. The SL600’s standard 5.5 turbo V12 produces 187 lbs.-ft. more torque (612 vs. 425) than the Vanquish S’ 5.9 DOHC V12. The SL65 AMG’s standard 6.0 turbo V12 produces 84 more horsepower (604 vs. 520) and 313 lbs.-ft. more torque (738 vs. 425) than the Vanquish S’ 5.9 DOHC V12.

For more instantaneous acceleration and better engine flexibility in any gear, the SL Class’ engines produce their peak torque and horsepower at lower RPM’s than the Vanquish S:

Horsepower

Torque

SL550 5.5 DOHC V8

6000 RPM

2800 RPM

SL55 AMG 5.4 supercharged V8

6100 RPM

2600 RPM

SL600 5.5 turbo V12

5000 RPM

3500 RPM

SL65 AMG 6.0 turbo V12

5500 RPM

2000 RPM

 5.9 DOHC V12

7000 RPM

5800 RPM

Fuel Economy and Range Comparison

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On the EPA test cycle the SL55 AMG gets better fuel mileage than the Vanquish S (14 city/19 hwy vs. 11 city/17 hwy).

An engine control system, which can shut down half of the engine’s cylinders, helps improve the SL Class V12’s fuel efficiency. The Vanquish S doesn’t offer a system that can shut down part of the engine.

Brakes and Stopping Comparison

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For better stopping power the SL65 AMG’s front brake rotors are larger than those on the Vanquish S:

SL65 AMG

Vanquish S

Front Rotors

15.4 inches

15.2 inches

Rear Rotors

14.2 inches

13 inches

Tires and Wheels Comparison

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The SL Class’ standard 285/35R18 rear tires provide better handling because they have a lower 35 series profile (height to width ratio), which provides a stiffer sidewall than the Vanquish S’ standard 40 series tires. The SL55/SL65’s 255/35R19 front and 285/30R19 rear tires have a lower 35 series front and 30 series rear profile than the Vanquish S’ 40 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the SL Class can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Vanquish S doesn’t offer run-flat tires.

Suspension and Handling Comparison

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The SL Class has standard front and rear gas-charged shocks for better control over choppy roads. The Vanquish S’ suspension doesn’t offer gas-charged shocks.

The SL Class offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Aston Martin doesn’t offer an active suspension on the Vanquish S.

The SL Class has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The Vanquish S’ suspension doesn’t offer adjustable shock absorbers.

The SL Class has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The Vanquish S doesn’t offer a load leveling suspension.

The SL65 AMG handles at .93 G’s, while the Vanquish S pulls only .91 G’s of cornering force in a Car and Driver skidpad test.

Chassis Comparison

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The SL Class is 5.2 inches shorter than the Vanquish S, making the SL Class easier to handle, maneuver and park in tight spaces.

The SL Class’ standard power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The Vanquish S doesn't offer a retractable hardtop.

Passenger Space Comparison

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The SL Class has .8 inches more front headroom, 4.2 inches more front legroom and 4.5 inches more front hip room than the Vanquish S.

Ergonomics Comparison

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The SL Class’ entire steering wheel hub sounds the horn, facilitating hitting the horn in an emergency. The Vanquish S has two small spoke buttons. These buttons can be hard to reach in an emergency.

When three different drivers share the SL Class, the memory system makes it convenient for all three. Each keyless remote activates different, customized memories for the driver and front passenger’s seat positions, steering wheel position, seatbelt height, outside mirror angle and climate settings. The Vanquish S doesn’t offer a memory system.

The SL Class’ front and rear power windows raise and lower automatically with one touch, especially convenient at tollbooths or drive-up windows. Only the front windows of the Vanquish S work automatically with one touch.

To help drivers see further while navigating curves, the SL Class offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Vanquish S doesn’t offer cornering lights.

The SL Class’ outside mirrors include heating elements to clear off the mirrors for better visibility. The Vanquish S doesn’t offer heated side mirrors.

When the SL Class 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 SL Class’ optional air conditioned front seats cool the driver and front passenger and help take the sting out of hot leather in Summer. The Vanquish S doesn’t offer air conditioned front seats.

The SL Class’ 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 S doesn’t offer dual zone air conditioning.

To keep a safe, consistent following distance, the SL Class offers an optional Distronic, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Vanquish S doesn’t offer an adaptive cruise control.

To help keep the driver’s hands on the wheel, the SL Class has standard steering wheel controls for the radio. The Vanquish S doesn’t offer steering wheel audio controls.

With optional voice command, the SL Class offers the driver hands free control of the radio and cell phone by simply speaking. The Vanquish S doesn’t offer a voice control system.

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