VS
At a Glance
Power
505hp @ 6500
186hp @ 6000
Torque
443lb-ft @ 2500
186lb-ft @ 4000
Fuel
21 mpg est.
30 mpg est.
Engine
2.9 L/176ci
2.5 L/152ci
Choosing between the Alfa Romeo Giulia and the Mazda Mazda3 is one of the most common decisions car buyers in the United States face. The Alfa Romeo Giulia delivers 505hp @ 6500 while the Mazda Mazda3 produces 186hp @ 6000. On fuel, the Giulia returns 21 mpg est. while the Mazda3 uses 30 mpg est. — important in a market where fuel prices change monthly. Pricing starts at on application for the Giulia and $30,210 for the Mazda3. 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
Alfa Romeo GiuliaQuadrifoglio RWD 2021
Mazda Mazda32.5 S Carbon Edition AWD 2026 - From $30,210
Performance
Power Output (hp)
505hp @ 6500
186hp @ 6000
Torque (lb-ft)
443lb-ft @ 2500
186lb-ft @ 4000
Engine & Drivetrain
Engine Capacity
2.9 L/176ci
2.5 L/152ci
Engine Layout
V
—
Cylinders
6
4
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
8
6
Drive Wheels
Rear Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
21 mpg est.
30 mpg est.
Fuel Economy - City (mpg)
17mpg
26 (Est)mpg
Fuel Economy - Highway (mpg)
25mpg
34 (Est)mpg
Fuel Tank Capacity (gal)
15.3gal
12.7gal
Dimensions
Length (in)
182.5in
183.5in
Width (in)
73.7in
70.7in
Height (in)
56.1in
56.9in
Wheelbase (in)
111in
107.3in
Curb Weight (lbs)
3806lbs
3283lbs
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
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
—
Sunroof
—
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Tie
1 / 4 categories
Performance
Giulia
Fuel Economy
Mazda3
Value
Tied
Practicality
Tied
Pros & Cons
Alfa Romeo Giulia
Well-rounded specification
Higher fuel consumption (21 mpg est.)
Mazda Mazda3
Better fuel economy (30 mpg est.)
Few notable weaknesses
Frequently Asked Questions
Which is more fuel efficient, the Giulia or Mazda3?
The Giulia gets 21 mpg est. and the Mazda3 gets 30 mpg est. on the combined cycle. The Mazda3 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 Giulia or Mazda3?
The Giulia produces 505hp @ 6500 and 443lb-ft @ 2500 of torque while the Mazda3 delivers 186hp @ 6000 and 186lb-ft @ 4000 of torque. The Giulia is the more powerful option.
Should I buy the Giulia or the Mazda3?
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