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Mercedes-Benz GLC vs Audi A3 - Differences and prices compared

Compare performance (671 HP vs 201 HP), trunk space and price (49,300 $ vs 35,800 $ ) at a glance. See which model fits your needs and budget better – Mercedes-Benz GLC or Audi A3?

Mercedes-Benz GLC vs Audi A3: Key differences

Mercedes-Benz GLC

  • substantially more power
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Audi A3

  • noticeably cheaper
  • somewhat more efficient
  • substantially lighter
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Here’s where it gets real: The technical differences in detail

GLC

Costs and Efficiency:

When it comes to price and running costs, the biggest differences usually appear. This is often where you see which car fits your budget better in the long run.

Audi A3 is noticeably cheaper – starting at 35,800 $ , while the Mercedes-Benz GLC costs 49,300 $ . That’s a price difference of around 13,450 $.

When it comes to city fuel economy, the Audi A3 performs somewhat better – achieving 29 mpg, compared to 26 mpg for the Mercedes-Benz GLC. That’s a difference of about 3 mpg.

A3

Engine and Performance:

Power, torque and acceleration say a lot about how a car feels on the road. This is where you see which model delivers more driving dynamics.

When it comes to engine power, the Mercedes-Benz GLC offers substantially more power – delivering 671 HP compared to 201 HP. That’s roughly 470 HP more horsepower.

There’s also a difference in torque: the Mercedes-Benz GLC delivers clearly more torque with 752 lb-ft compared to 221 lb-ft. That’s about 531 lb-ft more.

GLC

Space and Everyday Use:

Cabin size, boot volume and payload all play a role in everyday practicality. Here, comfort and flexibility make the difference.

Both vehicles offer seating for 5 people.

In terms of curb weight, Audi A3 is substantially lighter – 3,318 lbs compared to 5,115 lbs. The difference is around 1,797 lbs.

Who wins the race in the data check?

The Mercedes-Benz GLC holds a solid overall lead in the objective data comparison.
This result only shows which model scores more points on paper – not which of the two cars feels right for you.

from $49,300
GLC

Mercedes-Benz GLC

  • Engine Type : , Plug-In Hybrid
  • Transmission : Automatic
  • Drive Type : All Wheel, Rear Wheel
  • Power HP : 255 - 671 HP
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Mercedes-Benz GLC

The Mercedes-Benz GLC blends lounge-like refinement with a calm, confident drive, turning commutes and road trips into easy wins. With a plush cabin, slick infotainment, and a trunk that swallows family life whole, it’s the sweet spot for buyers who want SUV versatility without sacrificing that star-on-the-hood swagger.

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Audi A3

The Audi A3 is a sophisticated compact sedan that effortlessly combines elegance with performance. Known for its refined interior and advanced technology features, it offers a premium driving experience. Its sleek design and responsive handling make it a standout choice for those seeking luxury in a compact package.

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Mercedes-Benz GLC
Audi A3

Costs and Consumption
Price
49,300 - 91,500 $
Price
35,800 - 37,800 $
FuelEconomy City
18 - 26 mpg
FuelEconomy City
27 - 29 mpg
FuelEconomy Hwy
24 - 33 MPG
FuelEconomy Hwy
34 - 37 MPG
Electric Range
-
Electric Range
-
Battery Capacity
-
Battery Capacity
-
Fuel tank capacity
16.4 - 17.4 gal
Fuel tank capacity
14.5 gal

Dimensions and Body
Body Type
4MATIC, SUV
Body Type
Sedan
Seats
5
Seats
5
Doors
-
Doors
-
Curb weight
5,115 - 5,126 lbs
Curb weight
3,318 - 3,483 lbs
Trunk Volume
-
Trunk Volume
10.9 cu. ft.
Length
185.7 - 188.7 in.
Length
176.9 in.
Width
75.6 in.
Width
71.5 in.
Height
63 - 64 in.
Height
56 in.

Engine and Performance
Engine Type
, Plug-In Hybrid
Engine Type
Transmission
Automatic
Transmission
Automatic
Drive Type
All Wheel, Rear Wheel
Drive Type
Front Wheel, All Wheel
Power HP
255 - 671 HP
Power HP
201 HP
Torque
295 - 752 lb-ft
Torque
221 lb-ft
Number of Cylinders
-
Number of Cylinders
-
Engine Displacement
2 L
Engine Displacement
2 L
Gears
-
Gears
-

General
Model Year
2025
Model Year
2024
Brand
Mercedes-Benz
Brand
Audi
What is the price of the Mercedes-Benz GLC?

The Mercedes-Benz GLC starts at 49,300 $.

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. Prices shown are manufacturer suggested retail prices (MSRP). Taxes, registration fees and dealer charges are not included.