2026 Audi A6 vs 2026 Mercedes-Benz E-Class

$64,100 · Sedan

$63,900 · Sedan

Comparison Overview

When trying to decide between the sleek 2026 Audi A6 and the sophisticated 2026 Mercedes-Benz E-Class, the core dilemma often boils down to performance versus efficiency. The Audi A6 immediately jumps ahead in raw power, boasting 362 hp and 406 lb-ft of torque, making it significantly punchier than the E-Class's 255 hp. This comes at a slight penalty, as specific MPG figures aren't listed for the Audi, while the E-Class delivers a respectable 28 combined MPG (25 city/33 highway). Price-wise, they are nearly identical, with the E-Class at $63,900 and the A6 at $64,100. The A6 also uses an AWD system paired with a 7-speed automated manual, contrasting with the E-Class's RWD setup and 9-speed automatic. While both are close in size, the A6 offers marginally more cargo space at 13.5 cu ft versus 12.7 cu ft in the Mercedes.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Mercedes-Benz E-Class

The Mercedes-Benz E-Class is the clear commuter winner due to its superior 28 combined MPG rating.

👨‍👩‍👧‍👦 Best for Families

2026 Audi A6

The Audi A6 edges out the competition by offering slightly more trunk space at 13.5 cu ft for weekend gear.

🏎️ Best for Enthusiasts

2026 Audi A6

With 362 hp and 406 lb-ft of torque, the Audi A6 offers substantially more performance right off the line.

💰 Best Value

2026 Mercedes-Benz E-Class

The Mercedes-Benz E-Class wins on initial value as it costs $200 less than the Audi A6 while delivering better stated fuel economy.

Choose the Audi A6 if...

You prioritize aggressive acceleration, benefiting from the A6's 362 hp output.
You prefer the stability and traction offered by the standard All-Wheel Drive system.
You need the slight advantage in space provided by the 13.5 cu ft of cargo capacity.

Choose the Mercedes-Benz E-Class if...

Maximizing fuel economy is key, with the E-Class achieving 33 highway MPG.
You prefer the traditional feel of a 9-speed shiftable automatic transmission.
You are aiming to save $200 on the initial purchase price, listing at $63,900.

Key Dimensions

Dimension	Audi A6	Mercedes-Benz E-Class
Length	196.8"	194.9"
Width	73.8"	74.0"
Height	57.4"	57.9"
Wheelbase	115.1"	116.6"

Features Comparison

Safety

Feature	Audi	Mercedes-Benz
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	—
Lane Keeping Assist System	✓	—
Front Cross Traffic Alert	✓	—
Rear Cross Traffic Alert	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Dual Rear Side-Mounted Airbags	✓	—
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Front Headrests	2	2
Front Integrated Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Driver Attention Alert	—	✓
Brake Drying	—	✓
Brake Preparation System	—	✓
Headlight Delay-Off	—	✓
Adaptive Headlights	—	✓
Integrated Turn Signal Mirrors	—	✓
Front Power Adjustable Headrests	—	✓

Engine

Feature	Audi	Mercedes-Benz
Base Engine Displacement	3.0 L	2.0 L
Number of Cylinders	V6	inline 4
Base Engine Type	mild hybrid	mild hybrid
Horsepower	362 hp @ 5500 rpm	255 hp @ 5800 rpm
Torque	406 lb-ft @ 1700 rpm	295 lb-ft @ 2000 rpm
Number of Valves	24	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Audi	Mercedes-Benz
Transmission Type	7-speed automated manual	9-speed shiftable automatic
Drivetrain Type	all wheel drive	rear wheel drive
Center Differential Type	Limited Slip	—

Fuel

Feature	Audi	Mercedes-Benz
Fuel Type	premium unleaded (required)	premium unleaded (required)
EPA Driving Range (City/Highway)	0/0 mi.	435.0/574.2 mi.
Fuel Tank Capacity	19.3 gal.	17.4 gal.
EPA Fuel Economy (City/Highway)	—	25/33 MPG
EPA Fuel Economy (Combined)	—	28 MPG

Comfort & Convenience

Feature	Audi	Mercedes-Benz
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	✓
Wireless Charging Pad	✓	✓
Adaptive Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Three Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	—
Interior Air Filtration	✓	✓
Extended Cabin Heating/Cooling	✓	—
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Cruise Control on Steering Wheel	—	✓
Front View Camera	—	✓
Side View Camera	—	✓
Automatic Parking Assist	—	✓
Cruise Control	—	✓
Overhead Console with Storage	—	✓
Dual Zone Climate Control	—	✓
Rear Ventilation Ducts	—	✓
Turn Signal Indicators in Mirrors	—	✓

In Car Entertainment

Feature	Audi	Mercedes-Benz
Infotainment Display	14.5 in	14.4 in
AM/FM Stereo	✓	✓
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	6 months
Speed Sensitive Volume Control	✓	—
Speaker System	—	6

Power Feature

Feature	Audi	Mercedes-Benz
One-Touch Power Windows	4	4
Moonroof Type	1st Row Fixed Electrochromatic Glass	1st Row Power Glass Extended
Keyless Entry	✓	✓
Heated Mirrors	✓	✓

Frontseats

Feature	Audi	Mercedes-Benz
Front Head Room	40.0 in.	37.3 in.
Front Leg Room	41.3 in.	41.5 in.
Front Shoulder Room	57.1 in.	57.8 in.
Seat Material: Leather	✓	—
Front Seat Type: Sport	✓	—
Driver Seat Power Adjustments	8-way	10-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	8-way	10-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	—
Passenger Seat Ventilation	✓	—
Seat Material: Leatherette	—	✓
Front Seat Type: Bucket	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Thigh Extension	—	✓
Passenger Seat Memory Settings	—	3

Rearseats

Feature	Audi	Mercedes-Benz
Rear Head Room	37.8 in.	37.6 in.
Rear Leg Room	37.2 in.	36.2 in.
Rear Shoulder Room	55.4 in.	57.1 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Folding Center Armrest	—	✓

Tires and Wheels

Feature	Audi	Mercedes-Benz
Wheel Finish	Painted Alloy	Painted Alloy
Wheel Diameter	19 in	—
Tire Size	245/45R H	225/55R18
Run Flat Tires	✓	✓
Wheel Size	—	18 x 8.0 in

Suspension

Feature	Audi	Mercedes-Benz
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	Audi	Mercedes-Benz
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	4 yr./ 50000 mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.
Hybrid Component Warranty	—	6 yr./ 62000 mi.

Frequently Asked Questions

Common questions about comparing the 2026 Audi A6 and 2026 Mercedes-Benz E-Class.

How significant is the power difference between the 2026 A6 and E-Class?

The difference is quite noticeable; the Audi A6 produces 362 horsepower and 406 lb-ft of torque, which is a massive 107 hp more than the Mercedes-Benz E-Class's 255 hp.

Which sedan will save me more money at the pump?

The Mercedes-Benz E-Class is the definite fuel saver, achieving 28 combined MPG compared to the Audi A6, which requires premium fuel but has no stated efficiency numbers.

What is the practical difference in size or usability?

Both sedans are similarly sized, but the Audi A6 has a slightly longer body at 196.8 inches and offers 13.5 cu ft of cargo space, beating the E-Class's 12.7 cu ft.

Does the drivetrain difference affect daily driving?

Yes, the Audi A6 uses All-Wheel Drive (AWD) with a 7-speed automated manual, which is better for slick conditions, while the E-Class uses a Rear Wheel Drive (RWD) setup with a more conventional 9-speed automatic.

Are the base MSRPs very different?

No, the pricing is very competitive; the E-Class starts at $63,900, just $200 cheaper than the Audi A6's starting price of $64,100.

Which car is technically wider on the road?

The Mercedes-Benz E-Class is slightly wider than the Audi A6, measuring 74.0 inches across compared to the Audi's 73.8 inches, though the Audi is slightly taller.