2025 Honda Civic LX vs 2026 Mazda 3 2.5 S

$1,300 less and 7 mpg better vs 36 more hp and 53 more lb-ft torque. That is the real fork. Key numbers: $1,300 price gap, 150 vs 186 hp, 36 vs 29 MPG.

The short answer

The Civic LX leads on $1,300 less, 7 MPG better. The 3 2.5 S leads on 36 more hp, 53 more lb-ft torque. The spec table compares 6 specifications head to head.

$1,300
Price Gap
36 HP
HP Diff
7 MPG
Efficiency Diff
Lower price
2025 Honda Civic LX
Starts at $24,250
VS
Higher price
2026 Mazda 3 2.5 S
Starts at $25,550

Key Differences at a Glance

Engine
2.0L I4
vs
2.5L I4
Horsepower
150 hp
vs
186 hp
Torque
133 lb-ft
vs
186 lb-ft
Fuel Economy
36 MPG combined
vs
29 MPG combined
Curb Weight
2,877 lbs
vs
3,117 lbs

What's Actually Different

These two vehicles differ in 6 specifications.

MSRP
$24,250Civic LX
$25,5503 2.5 S
Engine
2.0L I4Civic LX
2.5L I43 2.5 S
Horsepower
150 hpCivic LX
186 hp3 2.5 S
Torque
133 lb-ftCivic LX
186 lb-ft3 2.5 S
Transmission
continuously variable-speed automaticCivic LX
6-speed shiftable automatic3 2.5 S
City MPG
32Civic LX
263 2.5 S
Highway MPG
41Civic LX
343 2.5 S
Combined MPG
36Civic LX
293 2.5 S
Fuel Tank
12.4 galCivic LX
13.2 gal3 2.5 S
Curb Weight
2,877 lbsCivic LX
3,117 lbs3 2.5 S
Wheelbase
107.7"Civic LX
107.3"3 2.5 S
Length
184.8"Civic LX
175.6"3 2.5 S
Width
70.9"Civic LX
70.7"3 2.5 S
Height
55.7"Civic LX
56.7"3 2.5 S

Full Specification Comparison

Specifications and pricing reflect available data as of early 2026 and may not match current manufacturer figures. Always confirm details with an authorized dealer before making a purchase decision.

Spec2025 Honda Civic LX2026 Mazda 3 2.5 S
Pricing
MSRP$24,250$25,550
Powertrain
Engine2.0L I42.5L I4
Horsepower150 hp186 hp
Torque133 lb-ft186 lb-ft
Transmissioncontinuously variable-speed automatic6-speed shiftable automatic
DrivetrainFWDFWD
Fuel Economy
City MPG3226
Highway MPG4134
Combined MPG3629
Fuel Tank12.4 gal13.2 gal
Dimensions
Curb Weight2,877 lbs3,117 lbs
Wheelbase107.7"107.3"
Length184.8"175.6"
Width70.9"70.7"
Height55.7"56.7"
Safety
NHTSA Overall5/5 starsNo published data
IIHS AwardTSP+TSP+
Warranty
Bumper-to-Bumper3yr/36k3yr/36k
Powertrain5yr/60k5yr/60k
Corrosion5yr/unlimited5yr/unlimited
Roadside Assistance3yr/36k3yr/36k

Frequently Asked Questions

What is the price difference between the 2025 Honda Civic LX and 2026 Mazda 3 2.5 S?

The 2025 Honda Civic LX starts at $24,250, $1,300 less than the 2026 Mazda 3 2.5 S at $25,550. On a 60-month loan that is roughly $23/month. All prices are MSRP before destination and dealer fees.

Who should choose the 2025 Honda Civic LX?

The 2025 Honda Civic LX is the stronger pick when you want to keep $1,300 in your pocket and the 2025 Honda Civic LX covers your needs; lower running costs matter to you, roughly $281/year less on fuel.

Who should choose the 2026 Mazda 3 2.5 S?

The 2026 Mazda 3 2.5 S is the stronger pick when the extra 36 hp matters for your commute or driving style.

Which gets better fuel economy, the 2025 Honda Civic LX or 2026 Mazda 3 2.5 S?

The 2025 Honda Civic LX rates 36 combined MPG, 7 MPG ahead.

Which is more powerful, the 2025 Honda Civic LX or 2026 Mazda 3 2.5 S?

The 2026 Mazda 3 2.5 S produces 186 hp, 36 more than the 2025 Honda Civic LX at 150 hp. The 2026 Mazda 3 2.5 S also leads in torque at 186 lb-ft vs 133 lb-ft. The 2025 Honda Civic LX runs a 2.0L I4; the 2026 Mazda 3 2.5 S uses a 2.5L I4.

Is the 2025 Honda Civic LX bigger than the 2026 Mazda 3 2.5 S?

The 2025 Honda Civic LX is 9.2″ longer at 184.8″ vs 175.6″. The 2025 Honda Civic LX has a 0.4″ longer wheelbase, which typically means more rear-seat legroom.

How do the warranties compare?

Both offer similar warranty coverage: 3yr/36k bumper-to-bumper and 5yr/60k powertrain.

Explore more: Honda trims, Honda Civic trims, Mazda trims, Mazda 3 trims

Official sources

How the Civic and 3 Stack Up

Two compact cars, two brands, and a decision that comes down to which one fits your commute and budget. The 2025 Honda Civic LX starts at $24,250; the 2026 Mazda 3 2.5 S at $25,550. The $1,300 gap is about $23/month on a 60-month loan. Noticeable but not dramatic enough to be the deciding factor on its own.

Powertrain: Civic vs 3

The 2025 Honda Civic LX runs a 2.0L I4; the 2026 Mazda 3 2.5 S uses a 2.5L I4. The 2026 Mazda 3 2.5 S has 36 more hp (186 vs 150), enough to notice on highway on-ramps and when passing. The 2026 Mazda 3 2.5 S adds 53 more lb-ft of torque (186 vs 133), giving it stronger low-end pull off the line. Both use FWD.

What It Actually Costs to Own

The 2025 Honda Civic LX saves roughly $281/year on fuel at $3.50/gallon and 12,000 annual miles. Over five years, that is $1,405. The 2025 Honda Civic LX wins on both sticker price and running costs, making it the stronger value on paper.

Which One Should You Buy?

Choose the 2025 Honda Civic LX when you want to keep $1,300 in your pocket and the 2025 Honda Civic LX covers your needs. Choose the 2026 Mazda 3 2.5 S when the extra 36 hp matters for your commute or driving style. At $23/month apart, the price difference alone will not decide this.

Specifications shown combine licensed third-party automotive data with official manufacturer, EPA, and NHTSA source material. Actual pricing, features, and availability may vary by region and dealer. Always confirm details with an authorized dealer before making a purchase decision. TrimAtlas is not affiliated with Honda or Mazda or any dealership.

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