VS
At a Glance
Power
394hp @ 5850
354hp @ 5400
Torque
354lb-ft @ 1700
369lb-ft @ 1370
Fuel
24 mpg est.
26 mpg est.
Engine
2.5 L/151ci
3.0 L/183ci
Choosing between the Audi A3 and the Audi A4 is one of the most common decisions car buyers in the United States face. The Audi A3 delivers 394hp @ 5850 while the Audi A4 produces 354hp @ 5400. On fuel, the A3 returns 24 mpg est. while the A4 uses 26 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $56,200 for the A3 and $51,400 for the A4. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Specification
Audi A32.5 TFSI 2019 - From $56,200
Audi A4S4 3.0 TFSI Premium Plus quattro AWD 2018 - From $51,400
Performance
Power Output (hp)
394hp @ 5850
354hp @ 5400
Torque (lb-ft)
354lb-ft @ 1700
369lb-ft @ 1370
Engine & Drivetrain
Engine Capacity
2.5 L/151ci
3.0 L/183ci
Engine Layout
—
V
Cylinders
5
6
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
7
8
Drive Wheels
All Wheel
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
24 mpg est.
26 mpg est.
Fuel Economy - City (mpg)
19mpg
21mpg
Fuel Economy - Highway (mpg)
28mpg
30mpg
Fuel Tank Capacity (gal)
14.5gal
15.3gal
Dimensions
Length (in)
176.3in
186.8in
Width (in)
70.7in
72.5in
Height (in)
55in
55.3in
Wheelbase (in)
103.6in
111.2in
Curb Weight (lbs)
3593lbs
3858lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
—
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
—
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Audi A4
2 / 4 categories
Performance
A3
Fuel Economy
A4
Value
A4
Practicality
Tied
Pros & Cons
Audi A3
Well-rounded specification
Higher fuel consumption (24 mpg est.)
Higher starting price
Audi A4
Better fuel economy (26 mpg est.)
Lower starting price ($51,400)
Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the A3 or A4?
The A3 gets 24 mpg est. and the A4 gets 26 mpg est. on the combined cycle. The A4 is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the A3 or A4?
The A3 produces 394hp @ 5850 and 354lb-ft @ 1700 of torque while the A4 delivers 354hp @ 5400 and 369lb-ft @ 1370 of torque. The A3 is the more powerful option.
What is the price difference between the A3 and A4?
The A3 starts from $56,200 and the A4 from $51,400. The A4 is cheaper by $4,800 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A3 or the A4?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.
Also Consider