2020 Honda Civic Si vs. 2021 Mazda Mazda3 | NewCars.com

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2020 Honda Civic Si vs. 2021 Mazda Mazda3 Review

Picture of the 2020 Honda Civic Si

2020 Honda
Civic Si

MSRP*: $25,200 to $25,400
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Find Your Best Price Today!

Picture of the 2021 Mazda Mazda3

2021 Mazda
Mazda3

MSRP*: $20,650 to $32,600
See details & photos

Find Your Best Price Today!

Invoice* $23,405 to $23,590 $19,751 to $31,169
MPG - City 26 MPG 23 - 28 MPG
MPG - Hwy 36 MPG 32 - 36 MPG
Seating Capacity 5 seats 5 seats
Cargo Space 14.7 ft3 13.2 ft3
Engine Inline-4 Inline-4
Transmission Manual Auto Manual
Drivetrain Front-wheel All-wheel, Front-wheel
Horsepower 205 hp 155 - 227 hp
Exterior Length 182.8 in 183.5 in
Exterior Width 70.8 in 70.7 in
Leg Room Front 42.3 in
Rear 37.4 in
Front 42.3 in
Rear 35.1 in
Head Room Front 37.5 in
Rear 36.8 in
Front 37.6 - 38.0 in
Rear 36.7 - 37.3 in
Basic Warranty 3 years/36,000 miles 3 years/36,000 miles
Overall Safety Rating** ***** *****
Frontal Crash Rating** ***** *****
Side Crash Rating** ***** *****

**Vehicle crash and safety data is provided by NHTSA, the National Highway Traffic Safety Administration. The NHTSA testing was established by Congress to reduce highway deaths and injuries.

*MSRP and Invoice prices displayed are for educational purposes only, do not reflect the actual selling price of a particular vehicle, and do not include applicable gas taxes or destination charges.

Comparison Review

Comfort
Due to its greater rear head- and legroom, backseat passengers will be able to stretch out a lot more in the Honda Civic Si than the Mazda Mazda3. As far as headroom and legroom go, there's not much difference between the Honda Civic Si and the Mazda Mazda3 in the front seats.

Convenience
You'll be making about the same number of stops at the gas station with the Honda Civic Si as you will with the Mazda Mazda3, as they get the same number of miles per tank of gas.

Cost
There are a lot of factors to consider when calculating the overall cost of a vehicle. The main consideration is Manufacturer's Suggested Retail Price (MSRP). When looking only at MSRP, the Honda Civic Si will have less of an impact on your bank account than the Mazda Mazda3. Another consideration is the Destination Charge, which is a standard charge for transporting the vehicle to the dealer from where it's built. The Honda Civic Si and the Mazda Mazda3 have similar Destination Charges.

Dimensions
The Honda Civic Si is about the same width as the Mazda Mazda3. When looking at overall length, the Honda Civic Si takes up about the same amount of space in your garage as the Mazda Mazda3.

Handling
The Honda Civic Si has a larger turning radius than the Mazda Mazda3, making it slightly more difficult to maneuver in and out of tight spots.

Performance
When it comes to horsepower, the Honda Civic Si is somewhat more powerful than the Mazda Mazda3.

Powertrain
With somewhat higher torque, the engine of the Honda Civic Si transmits a bit more power to the wheels than the Mazda Mazda3.

Utility
In terms of seating you'll be able to fit the same number of people in both the Honda Civic Si and the Mazda Mazda3. The Honda Civic Si has a roomier cargo area for holding your bags or other items than the Mazda Mazda3.

Warranty
The Honda Civic Si comes with essentially the same basic warranty as the Mazda Mazda3.