2019 Buick Regal Sportback vs. 2019 Mercedes C-Class Sedan

Detailed Review, Specifications & Comparison

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Safety

Both the Regal Sportback and the C-Class Sedan have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems, front and rear parking sensors and rear cross-path warning.

Warranty

Buick’s powertrain warranty covers the Regal Sportback 2 years and 20,000 miles longer than Mercedes covers the C-Class Sedan. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the C-Class Sedan ends after only 4 years or 50,000 miles.

The Regal Sportback’s corrosion warranty is 1 year longer than the C-Class Sedan’s (6 vs. 5 years).

Buick pays for scheduled maintenance on the Regal Sportback for 2 years and 24,000 miles. Buick will pay for oil changes, lubrication and any other required maintenance (up to 2 oil changes). Mercedes doesn’t pay scheduled maintenance for the C-Class Sedan.

There are over 5 times as many Buick dealers as there are Mercedes dealers, which makes it much easier should you ever need service under the Regal Sportback’s warranty.

Reliability

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Buick vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Buick third in reliability, above the industry average. With 31 more problems per 100 vehicles, Mercedes is ranked 15th.

Fuel Economy and Range

To lower fuel costs and make buying fuel easier, the Buick Regal Sportback uses regular unleaded gasoline (premium recommended with the 2.0 turbo 4 cyl. engine for maximum performance). The C-Class Sedan requires premium, which can cost 20 to 55 cents more per gallon.

The Regal Sportback has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The C-Class Sedan doesn’t offer a cap-less fueling system.

Tires and Wheels

For better traction, the Regal Sportback’s optional tires are larger than the largest tires available on the C-Class Sedan (245/45R18 vs. 225/40R19).

The Regal Sportback FWD Preferred/Essence has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the C-Class Sedan; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed. Some models of the C-Class Sedan don’t even offer run-flats.

Suspension and Handling

For better handling and stability, the track (width between the wheels) on the Regal Sportback is .8 inches wider in the front and 2.1 inches wider in the rear than the average track on the C-Class Sedan.

Chassis

The Regal Sportback AWD uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The C-Class Sedan doesn’t offer active noise cancellation.

Passenger Space

Because it has more passenger and cargo room, the EPA rates the Regal Sportback a Large car, while the C-Class Sedan is rated a Compact.

The Regal Sportback has 8 cubic feet more passenger volume than the C-Class Sedan (98 vs. 90).

The Regal Sportback has 1.7 inches more front headroom, .4 inches more front legroom, 1.6 inches more front shoulder room, .3 inches more rear headroom, 1.7 inches more rear legroom and .4 inches more rear shoulder room than the C-Class Sedan.

Ergonomics

The Regal Sportback’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 C-Class Sedan does not have an oil pressure gauge.

Economic Advantages

According to The Car Book by Jack Gillis, the Regal Sportback is less expensive to operate than the C-Class Sedan because it costs $36 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Regal Sportback than the C-Class Sedan, including $14 less for fuel injection, $437 less for a fuel pump, $144 less for front struts and $5 less for a power steering pump.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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