Audi A3 vs Audi A4 Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2026 Audi A3 1.5 TFSI (116ps) (MHEV) Sportback 5d S Tronic
Photo of 2020 model year shown

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2025 Audi A4 2.0 35 TDI Black Edition
Photo of 2016 model year shown

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Specs

2026 Audi A3
1.5 TFSI (116ps) (MHEV) Sportback 5d S Tronic
2025 Audi A4
2.0 35 TDI Black Edition
Powertrain 7-speed Automatic 7-speed Automatic
Drivetrain
FWD
FWD
Fuel economy, city -- --
Fuel economy, motorway -- --
Fuel tank volume 170 L 151 L
Engine
Fuel type
Petrol
Diesel
Power
85 kW
120 kW
Torque
298 N-m @ 3,000 RPM
542 N-m @ 2,750 RPM
Cylinders
4 cylinders
4 cylinders
Engine size
1,498 cc
1,968 cc
Interior
Maximum seating 5 seats 5 seats
Front legroom -- --
Rear legroom -- --
Exterior
Length 110.54 m 120.95 m
Width 50.39 m 51.36 m
Height 36.6 m 36.35 m
Wheelbase 66.93 m 71.63 m

Available Options

2026 Audi A3
1.5 TFSI (116ps) (MHEV) Sportback 5d S Tronic
2025 Audi A4
2.0 35 TDI Black Edition

Related Comparisons

2026 Audi A3
1.5 TFSI (116ps) (MHEV) Sportback 5d S Tronic
2025 Audi A4
2.0 35 TDI Black Edition