Certified Benz & Beemer Compares 2017 Audi A6 VS 2017 Lexus LS Near Scottsdale, AZ

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2017 Audi A6

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2017 Lexus LS

Safety Comparison

The A6 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 LS Series 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.

An active infrared night vision system optional on the A6 Prestige helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then projects the image on the windshield, near the driver’s line of sight. The LS Series doesn’t offer a night vision system.

The A6 offers an optional Top and Corner View Cameras to allow the driver to see objects all around the vehicle on a screen. The LS Series 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.

Compared to metal, the A6’s plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Lexus LS Series has a metal gas tank.

Both the A6 and the LS Series have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger 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 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 A6 the rating of “Top Pick” for 2017, a rating granted to only 103 vehicles tested by the IIHS. The LS Series has not been fully tested, yet.

Warranty Comparison

The A6’s corrosion warranty is 6 years longer than the LS Series’ (12 vs. 6 years).

There are over 22 percent more Audi dealers than there are Lexus dealers, which makes it easier should you ever need service under the A6’s warranty.

Reliability Comparison

To reliably power the ignition and other systems and to recharge the battery, the A6 has a standard 180-amp alternator. The LS Series’ 100-amp alternator isn’t as powerful.

The battery on the A6 is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the A6’s battery 20 to 30 degrees cooler, its life is increased by years. The LS Series’ battery is in the hot engine compartment.

Engine Comparison

As tested in Car and Driver the A6 3.0T 3.0 supercharged V6 is faster than the Lexus LS Series:



LS 460

LS 600h L

Zero to 60 MPH

4.6 sec

6.2 sec

5.4 sec

Zero to 100 MPH

11.8 sec

14.8 sec

12.4 sec

5 to 60 MPH Rolling Start

5.7 sec

6.4 sec

5.7 sec

Passing 30 to 50 MPH

2.6 sec

3.3 sec


Passing 50 to 70 MPH

3.4 sec

3.8 sec


Quarter Mile

13.3 sec

14.6 sec

13.8 sec

Speed in 1/4 Mile

105 MPH

99 MPH

106 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the A6 3.0T Quattro 3.0 S.C. V6 (333 HP) gets better fuel mileage than the LS 460 AWD 4.6 V8 (359 HP) (21 city/29 hwy vs. 16 city/23 hwy).

Regardless of its engine, the A6’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) Lexus only offers an automatic engine start/stop system on the LS Series Hybrid.

Brakes and Stopping Comparison

For better stopping power the A6’s standard brake rotors are larger than those on the LS Series:



LS Series

Front Rotors

13.6 inches

13.1 inches

Rear Rotors

13 inches

12.4 inches

The A6 stops much shorter than the LS Series:



LS Series


70 to 0 MPH

156 feet

209 feet

Car and Driver

60 to 0 MPH

106 feet

135 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the A6 has larger standard tires than the LS Series (245/45R18 vs. 235/50R18). The A6’s optional tires are larger than the largest tires available on the LS Series (255/40R19 vs. 245/45R19).

The A6’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the LS Series’ standard 50 series tires. The A6’s optional tires have a lower 35 series profile than the LS Series’ optional 45 series tires.

For better ride, handling and brake cooling the A6 offers optional 20-inch wheels. The LS Series’ largest wheels are only 19-inches.

Suspension and Handling Comparison

The A6 has standard front and rear gas-charged shocks for better control over choppy roads. The LS Series base model’s suspension doesn’t offer gas-charged shocks.

The A6 3.0T Quattro handles at .93 G’s, while the LS 600h L AWD pulls only .75 G’s of cornering force in a Car and Driver skidpad test.

The A6 3.0T Quattro executes Motor Trend’s “Figure Eight” maneuver 2.4 seconds quicker than the LS 600h L AWD (25.1 seconds @ .74 average G’s vs. 27.5 seconds @ .65 average G’s).

Chassis Comparison

The Audi A6 may be more efficient, handle and accelerate better because it weighs about 450 to 950 pounds less than the Lexus LS Series.

The A6 is 5.8 inches shorter than the LS Series, making the A6 easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver while under full throttle, the interior of the A6 3.0T Quattro is quieter than the LS 460 L AWD (72 vs. 73 dB).

Cargo Capacity Comparison

The A6’s standard rear seats fold to accommodate long and bulky cargo. The LS Series doesn’t offer folding rear seats, only a ski pass-through.

To make loading groceries and cargo easier when your hands are full, the A6’s available trunk can be opened just by holding your hand near the emblem on the trunk, leaving your hands completely free. The LS Series doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Ergonomics Comparison

The A6 Prestige has a standard heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The LS Series doesn’t offer a heads-up display.

The power windows standard on both the A6 and the LS Series have locks to prevent small children from operating them. When the lock on the A6 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The LS Series prevents the driver from operating the other windows just as it does the other passengers.

Heated windshield washer nozzles are standard on the A6 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The LS Series doesn’t offer heated windshield washer nozzles.

The A6’s power mirror controls are mounted on the armrest for easy access. The LS Series’ power mirror controls are on the dash, hidden behind the steering wheel, where they are awkward to manipulate.

Economic Advantages Comparison

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Audi A6 will be $23805 to $57107 less than for the Lexus LS Series.

Recommendations Comparison

The Audi A6 has won recognition from these important consumer publications:



LS Series

Consumer Reports® Recommends



Car Book “Best Bet”



J.D. Power and Associates rated the A6 first among midsize premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The LS Series isn’t in the top three in its category.

The A6 was chosen as one of Car and Driver’s “Top Ten” for 5 of the last 17 years. The LS Series has never been a Car and Driver “Top Ten” pick.

The Audi A6/S6 outsold the Lexus LS Series by over three to one during the 2016 model year.

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