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For enhanced safety, the front and rear seat shoulder belts of the Audi S5 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW M2 doesn’t offer pretensioners for the rear seat belts.
The S5’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The M2 doesn’t offer pre-crash pretensioners.
The S5’s standard pretensioning seatbelts also sense rear collisions and remove slack from the seatbelts to help protect the occupants from whiplash and other injuries. The M2 doesn’t offer a whiplash protection system.
The S5 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The M2 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
The S5 has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The M2 doesn’t offer all-wheel drive.
The S5 Prestige has a standard Top and Corner View Cameras to allow the driver to see objects all around the vehicle on a screen. The M2 only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
The S5’s optional blind spot warning system uses digital cameras monitored by computer to alert the driver to moving objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. The M2 doesn’t offer a system to reveal objects in the driver’s blind spots.
To help make backing safer, the S5’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 M2 doesn’t offer a cross-path warning system.
Both the S5 and the M2 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras and available lane departure warning systems.
For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the S5 the rating of “Top Pick” for 2017, a rating granted to only 185 vehicles tested by the IIHS. The M2 has not been tested, yet.
From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Audi vehicles are more reliable than BMW vehicles. Consumer Reports ranks Audi 3 places higher in reliability than BMW.
To lower fuel costs and make buying fuel easier, the Audi S5 uses regular unleaded gasoline (premium recommended for maximum performance). The M2 requires premium, which can cost 20 to 55 cents more per gallon.
The S5 has 1.6 gallons more fuel capacity than the M2 (15.3 vs. 13.7 gallons), for longer range between fill-ups.
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi S5 higher (5 out of 10) than the BMW M2 (3). This means the S5 produces up to 16.5 pounds less smog-producing pollutants than the M2 every 15,000 miles.
The Audi S5 comes standard with an automatic transmission, for driver comfort, especially in the city. Automatic costs extra on the M2.
An eight-speed automatic is standard on the Audi S5, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the M2.
All-wheel drive, available in the S5, provides the best traction for acceleration in wet, dry, and icy conditions. In corners, all-wheel drive allows both outside wheels to provide power, balancing the car. This allows for better handling. The BMW M2 is not available with all-wheel drive.
The S5 stops shorter than the M2:
70 to 0 MPH
Car and Driver
For better traction, the S5’s optional tires are larger than the largest tires available on the M2 (265/30R20 vs. 245/35R19).
The S5’s optional tires provide better handling because they have a lower 30 series profile (height to width ratio) that provides a stiffer sidewall than the M2’s 35 series tires.
For better ride, handling and brake cooling the S5 offers optional 20-inch wheels. The M2’s largest wheels are only 19-inches.
The S5 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 M2; it requires you to depend on roadside assistance and your vehicle will have to be towed.
For a smoother ride and more stable handling, the S5’s wheelbase is 2.8 inches longer than on the M2 (108.8 inches vs. 106 inches).
For better maneuverability, the S5’s turning circle is .7 feet tighter than the M2’s (37.7 feet vs. 38.4 feet).
As tested by Car and Driver, the interior of the S5 Prestige Coupe is quieter than the M2 Competition:
70 MPH Cruising
To make loading groceries and cargo easier when your hands are full, the S5’s available trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The M2 doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.
J.D. Power and Associates surveys of service recipients show that Audi service is better than BMW. J.D. Power ranks Audi 8th in service department satisfaction (above the industry average). With a 10% lower rating, BMW is ranked 11th.
The S5 Prestige has a standard heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The M2 doesn’t offer a heads-up display.
The S5’s power parking brake sets with one touch and releases with one touch or automatically. The M2 has a lever-type parking brake that has to be strenuously raised to engage properly. It has to be lifted up more and a button depressed to release it.
Heated windshield washer nozzles are standard on the S5 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The M2 doesn’t offer heated windshield washer nozzles.
In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The S5 Prestige has standard headlight washers to keep headlight output high. The M2 doesn’t offer headlight washers.
To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the S5 has standard extendable sun visors. The M2 doesn’t offer extendable visors.
The S5’s sun-visors swivel front-to-side to block glare from the side windows. The M2’s visors are fixed into the windshield header.
Optional air-conditioned seats in the S5 Premium Plus/Prestige keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The M2 doesn’t offer air-conditioned seats.
The S5 has standard massaging front seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the M2.
To keep a safe, consistent following distance, the S5 (except Premium) offers an optional Adaptive Cruise Control, 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 M2 doesn’t offer an adaptive cruise control.
The S5 Prestige’s Park Steering Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The M2 doesn’t offer an automated parking system.
The Audi S5 comes in coupe, convertible and four door hatchback bodystyles; the BMW M2 isn’t available as a convertible or four door.
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