2020 Mercedes SLC vs. 2020 Audi S5

Detailed Review, Specifications & Comparison

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Safety

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The SLC’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The S5 doesn’t offer a driver alert monitor.

Both the SLC and the S5 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and rear parking sensors.

Warranty

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/04/08

There are over 26 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the SLC’s warranty.

Reliability

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J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Mercedes 12th in initial quality. With 12 more problems per 100 vehicles, Audi is ranked 22nd.

Fuel Economy and Range

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/04/08

On the EPA test cycle the SLC 300 gets better fuel mileage than the S5 Cabriolet (23 city/32 hwy vs. 19 city/26 hwy).

Transmission

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A nine-speed automatic is standard on the Mercedes SLC, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the S5.

Suspension and Handling

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For better maneuverability, the SLC’s turning circle is .9 feet tighter than the S5’s (36.8 feet vs. 37.7 feet).

Chassis

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The Mercedes SLC may be more efficient, handle and accelerate better because it weighs about 450 to 800 pounds less than the Audi S5.

The SLC is 1 foot, 10.1 inches shorter than the S5, making the SLC easier to handle, maneuver and park in tight spaces.

The SLC’s standard power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The S5 doesn’t offer a retractable hardtop.

Cargo Capacity

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The SLC has a larger trunk with its top up than the S5 Cabriolet with its top up (10.1 vs. 9.3 cubic feet).

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Audi. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 13% lower rating, Audi is ranked 8th.

Ergonomics

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Unlike the driver-only memory system optional at extra cost in the S5, the SLC has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The SLC’s standard easy entry system raises the steering wheel, making it easier for the driver to get in and out. The S5 doesn’t offer an easy entry system.

In case of a sudden change of weather, the SLC offers an optional remote convertible top that can be raised from a distance to protect the interior of the vehicle from damage. The S5 doesn’t offer a remote top, so the driver will have to run to the car, get in, turn the ignition on and raise the top to prevent the interior from being damaged.

To help drivers avoid possible obstacles, the SLC offers optional cornering lights to illuminate around corners when the turn signals are activated. The S5 doesn’t offer cornering lights. The SLC also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

Economic Advantages

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Insurance will cost less for the SLC owner. The Complete Car Cost Guide estimates that insurance for the SLC will cost $5005 to $8200 less than the S5 over a five-year period.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Mercedes SLC will be $7366 to $8345 less than for the Audi S5.

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