Certified Benz & Beemer Compares 2007 Jaguar XK VS 2007 Mercedes SL Near Scottsdale, AZ

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2007 Jaguar XK

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VS

2007 Mercedes SL

Safety Comparison

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The XK has standard whiplash protection, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the whiplash protection system moves the headrests forward to prevent neck and spine injuries. The SL Class doesn’t offer a whiplash protection system.

Both the XK and the SL Class have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front seatbelt pretensioners, four wheel antilock brakes, traction control and electronic stability systems to prevent skidding.

Warranty Comparison

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The XK’s corrosion warranty is 2 years and unlimited miles longer than the SL Class’ (6/unlimited vs. 4/50,000).

Jaguar pays for scheduled maintenance on the XK for 1 year and 12000 miles. Jaguar will pay for oil changes, tire rotation, lubrication and any other scheduled maintenance. Mercedes doesn’t pay scheduled maintenance for the SL Class.

Engine Comparison

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As tested in Motor Trend the XKR is faster than the SL55 AMG:

XK

SL Class

Zero to 60 MPH

4.3 sec

5.4 sec

Fuel Economy and Range Comparison

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On the EPA test cycle the XK8 gets better fuel mileage than the SL550 (18 city/27 hwy vs. 14 city/22 hwy).

Brakes and Stopping Comparison

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The XK’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the SL550 are solid, not vented.

The XK stops much shorter than the SL Class:

XK

SL Class

70 to 0 MPH

163 feet

178 feet

Car and Driver

Tires and Wheels Comparison

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For better ride, handling and brake cooling the XK offers optional 20 inch wheels. The SL Class’ largest wheels are only 19 inches.

Suspension and Handling Comparison

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For a smoother ride and more stable handling, the XK’s wheelbase is 7.5 inches longer than on the SL Class (108.3 vs. 100.8 inches).

For better handling and stability, the track (width between the wheels) on the XK is 2.1 inches wider in the rear than the average track on the SL Class.

The XK Convertible handles at .87 G’s, while the SL550 pulls only .84 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the XK’s turning circle is 2.9 feet tighter than the SL Class’ (33.3 feet vs. 36.2 feet).

Chassis Comparison

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The Jaguar XK may be more efficient, handle and accelerate better because it weighs about 550 to 800 pounds less than the Mercedes SL Class.

As tested by Car and Driver, the interior of the XK Convertible is quieter than the SL55 AMG:

XK

SL Class

At idle

43 dB

55 dB

Full-Throttle

74 dB

78 dB

Passenger Space Comparison

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The XK has standard seating for 4 passengers; the SL Class can only carry 2.

Ergonomics Comparison

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The XK’s standard power mirror controls are mounted on the armrest for easy access. The SL Class’ standard power mirror controls are on the center console where they can’t be seen without the driver completely removing his eyes from the road.

Economic Advantages Comparison

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Insurance will cost less for the XK owner. The Complete Car Cost Guide estimates that insurance for the XK will cost $369 to $2743 less than the SL Class over a five year period.

The headlight lenses on the XK are made of plastic to be lighter, more resistant to damage and less expensive to replace than the glass headlight lenses on the SL Class.

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