2019 Infiniti Q70 vs. 2018 Mercedes S-Class

                        Detailed Review, Specifications & Comparison

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                        Safety

                        Over 200 people are killed each year when backed over by motor vehicles. The Q70 offers optional Backup Collision Intervention which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The S-Class doesn’t offer backup collision prevention brakes.

                        To help make backing safer, the Q70’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The S-Class doesn’t offer a cross-path warning system.

                        Both the Q70 and the S-Class have standard driver and passenger frontal airbags, front side-impact 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 all wheel drive, crash mitigating brakes, lane departure warning systems and blind spot warning systems.

                        For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the Q70 the rating of “Top Pick” for 2017, a rating granted to only 149 vehicles tested by the IIHS. The S-Class has not been tested, yet.

                        Warranty

                        The Q70 comes with a full 4-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The S-Class’ 4-year/50,000-mile basic warranty expires 10,000 miles sooner.

                        Infiniti’s powertrain warranty covers the Q70 2 years and 20,000 miles longer than Mercedes covers the S-Class. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the S-Class ends after only 4 years or 50,000 miles.

                        The Q70’s corrosion warranty is 2 years longer than the S-Class’ (7 vs. 5 years).

                        Reliability

                        A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the Q70’s reliability 42 points higher than the S-Class.

                        J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Infiniti vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Infiniti fourth in reliability, above the industry average. With 27 more problems per 100 vehicles, Mercedes is ranked 15th.

                        From surveys of all its subscribers, Consumer Reports’ April 2018 Auto Issue reports that Infiniti vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Infiniti 7 places higher in reliability than Mercedes.

                        Engine

                        As tested in Car and Driver the Q70 5.6 LUXE is faster than the Mercedes S-Class:

                         

                        Q70

                        S 550e

                        S 560

                        Zero to 60 MPH

                        4.7 sec

                        4.9 sec

                        4.9 sec

                        Zero to 80 MPH

                        7.7 sec

                        8.1 sec

                        7.7 sec

                        Zero to 100 MPH

                        11.4 sec

                        12.4 sec

                        11.5 sec

                        5 to 60 MPH Rolling Start

                        4.7 sec

                        5.1 sec

                        5.2 sec

                        Passing 30 to 50 MPH

                        2.3 sec

                        2.5 sec

                        2.9 sec

                        Passing 50 to 70 MPH

                        3.1 sec

                        3.3 sec

                        3.4 sec

                        Quarter Mile

                        13.4 sec

                        13.6 sec

                        13.4 sec

                        Speed in 1/4 Mile

                        107 MPH

                        103 MPH

                        108 MPH

                        Brakes and Stopping

                        The Q70 stops much shorter than the S-Class:

                         

                        Q70

                        S-Class

                         

                        70 to 0 MPH

                        164 feet

                        190 feet

                        Car and Driver

                        60 to 0 MPH

                        108 feet

                        119 feet

                        Motor Trend

                        Suspension and Handling

                        The Q70 3.7 LUXE handles at .87 G’s, while the S 550e pulls only .81 G’s of cornering force in a Car and Driver skidpad test.

                        The Q70 3.7 LUXE executes Motor Trend’s “Figure Eight” maneuver quicker than the S 560 (25.9 seconds @ .7 average G’s vs. 26.5 seconds @ .7 average G’s).

                        For better maneuverability, the Q70’s turning circle is 1.4 feet tighter than the S AMG S 65’s (36.7 feet vs. 38.1 feet). The Q70 AWD’s turning circle is 3 feet tighter than the S 450/560’s (37.4 feet vs. 40.4 feet).

                        Chassis

                        The Infiniti Q70 may be more efficient, handle and accelerate better because it weighs about 750 to 800 pounds less than the Mercedes S-Class.

                        The Q70 is shorter than the S-Class, making the Q70 easier to handle, maneuver and park in tight spaces:

                         

                        Q70

                        S-Class

                        SWB Sedan

                        196.1 inches

                        206.5 inches

                        LWB Sedan

                        202 inches

                        214.7 inches

                        The design of the Infiniti Q70 amounts to more than styling. The Q70 has an aerodynamic coefficient of drag of .27 Cd. That is lower than the S-Class (.27 to .28) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the Q70 get better fuel mileage.

                        The Q70 uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The S-Class doesn’t offer active noise cancellation.

                        Cargo Capacity

                        The Q70 has a much larger trunk than the Maybach S-Class (14.9 vs. 12.3 cubic feet).

                        Servicing Ease

                        J.D. Power and Associates surveys of service recipients show that Infiniti service is better than Mercedes. J.D. Power ranks Infiniti first in service department satisfaction. With a 8% lower rating, Mercedes is ranked 6th.

                        Economic Advantages

                        Insurance will cost less for the Q70 owner. The Complete Car Cost Guide estimates that insurance for the Q70 will cost $3020 to $11345 less than the S-Class over a five-year period.

                        The Q70 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Q70 will retain 33.61% to 37.74% of its original price after five years, while the S-Class only retains 30.95% to 33.39%.

                        According to The Car Book by Jack Gillis, the Q70 is less expensive to operate than the S-Class because it costs $315 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the Q70 than the S-Class, including $265 less for a water pump, $774 less for a muffler, $233 less for a starter, $71 less for fuel injection, $60 less for a fuel pump and $146 less for a power steering pump.

                        IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Infiniti Q70 will be $44299 to $98901 less than for the Mercedes S-Class.

                        Recommendations

                        Consumer Reports® recommends both the Infiniti Q70 and the Mercedes S-Class, based on reliability, safety and performance.

                        J.D. Power and Associates rated the Q70 second among midsize premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The S-Class isn’t in the top three in its category.

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

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