Audi A5 vs Mercedes-Benz AMG GT

The Audi A5 is the more efficient of the two: it reaches 30 mpg combined versus 22 mpg for the Mercedes-Benz AMG GT, a 8 mpg advantage and costs about $900 less per year to fuel.

Across 5 measured categories, the Audi A5 leads in 5. Figures are EPA test data, not manufacturer claims.

2015–2027

Audi A5

Subcompact Cars · 40 configurations

30mpg combined (best)
All Audi A5 specs

2016–2027

Mercedes-Benz AMG GT

Two Seaters · 67 configurations

22mpg combined (best)
All Mercedes-Benz AMG GT specs

Head-to-head specifications

MetricAudi A5Mercedes-Benz AMG GT
Best combined MPG30 mpg22 mpg
Best city MPG26 mpg20 mpg
Best highway MPG36 mpg27 mpg
Lowest annual fuel costEPA estimate at 15,000 miles per year$2,550$3,450
Lowest CO2 output300 g/mi397 g/mi
Engines offeredSIDI;, SIDI, SIDI; Mild Hybrid, SIDI; FFVSIDI, SIDI; Mild Hybrid, SIDI; PHEV
TransmissionsAutomatic (AM-S7), Manual 6-spd, Automatic (S8)Automatic 9-spd, Automatic (AM7), Automatic (AM-S7)
DrivetrainsAll-Wheel DriveAll-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive
Fuel typesPremium, Premium or E85Premium, Premium and Electricity
EPA classSubcompact CarsTwo Seaters
Years covered2015–20272016–2027
Configurations on record4067

Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.

A5 vs AMG GT: common questions

Which is better on gas, the Audi A5 or the Mercedes-Benz AMG GT?

The Audi A5 is the more efficient of the two: it reaches 30 mpg combined versus 22 mpg for the Mercedes-Benz AMG GT, a 8 mpg advantage and costs about $900 less per year to fuel.

Which costs less to run per year?

By EPA estimates at 15,000 miles a year, the Audi A5 runs about $2,550 a year in fuel at its most efficient configuration, versus about $3,450 for the Mercedes-Benz AMG GT — a difference of roughly $900 per year.

What engines do the A5 and AMG GT offer?

Audi A5: SIDI;, SIDI, SIDI; Mild Hybrid, SIDI; FFV. Mercedes-Benz AMG GT: SIDI, SIDI; Mild Hybrid, SIDI; PHEV.

Are they in the same vehicle class?

The EPA classifies the Audi A5 as Subcompact Cars and the Mercedes-Benz AMG GT as Two Seaters, so they aren't a like-for-like match on size.

More A5 comparisons

Comparison id: audi-a5-vs-mercedes-benz-amg-gt