2026 BMW 3 Series vs 2026 Mercedes-Benz CLA
Comparison Overview
The most significant numerical divergence between the 2026 BMW 3 Series (car1) and the 2026 Mercedes-Benz CLA (car2) is the MSRP, with the CLA starting $4,750 lower at $42,750 compared to the BMW’s $47,500. Performance figures clearly favor the 3 Series, generating 255 hp and 295 lb-ft of torque versus the CLA's 221 hp and 258 lb-ft. This power translates to a better power-to-weight ratio favoring the BMW, despite the CLA offering slightly superior highway efficiency at 36 MPG versus the 3 Series’ 35 MPG. Furthermore, the CLA sacrifices significant utility, providing only 11.6 cu ft of cargo capacity compared to the BMW's superior 16.9 cu ft. Both vehicles demand premium unleaded fuel and utilize 8-speed transmissions, but the BMW's standard RWD configuration contrasts with the CLA's FWD layout.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2026 BMW 3 Series
The 2026 BMW 3 Series offers a slightly better overall combined efficiency of 31 MPG compared to the CLA's 30 MPG.
2026 BMW 3 Series
The BMW 3 Series offers substantially more usable space with 16.9 cu ft of cargo capacity compared to the CLA's 11.6 cu ft.
2026 BMW 3 Series
With 255 hp and 295 lb-ft of torque, the BMW delivers 34 more horsepower and superior driving dynamics via its standard rear-wheel-drive platform.
2026 Mercedes-Benz CLA
The Mercedes-Benz CLA provides an entry point nearly $4,750 less expensive while still offering premium entry-level luxury and mandated premium fuel economy.
Choose the BMW 3 Series if...
- Maximum performance is desired, evidenced by the 255 hp and 295 lb-ft output.
- A more practical sedan footprint is necessary, highlighted by the 16.9 cu ft cargo capacity.
- Rear-wheel-drive dynamics are preferred over the CLA's front-wheel-drive configuration.
Choose the Mercedes-Benz CLA if...
- A lower initial outlay is critical, with the CLA priced at $42,750 versus the BMW's $47,500.
- Highway fuel economy of 36 MPG is the priority over the BMW’s 35 MPG.
- A slightly wider body stance (72.0 inches) is preferred, despite having less cargo space.
Key Dimensions
| Dimension | BMW 3 Series | Mercedes-Benz CLA |
|---|---|---|
| Length | 185.9" | 184.6" |
| Width | 71.9" | 72.0" |
| Height | 56.8" | 56.7" |
| Wheelbase | 112.2" | 107.4" |
Features Comparison
Safety
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Lane Departure Warning | ✓ | — |
| Lane Keeping Assist System | ✓ | — |
| Driver Attention Alert | ✓ | ✓ |
| Pre-Collision Safety System | ✓ | — |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Front Head Airbags | ✓ | ✓ |
| Rear Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Rear Door Child Safety Locks | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Brake Drying | ✓ | ✓ |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | — |
| Brake Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Self-Leveling Headlights | ✓ | — |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | — |
| Rear Headrests | 3 | 3 |
| Rear Height Adjustable Headrests | ✓ | — |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Blind Spot Monitor | — | ✓ |
| Rear Solid Disc Brakes | — | ✓ |
| Front Integrated Headrests | — | ✓ |
| Rear Integrated Headrests | — | ✓ |
Engine
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | mild hybrid | mild hybrid |
| Horsepower | 255 hp @ 4700 rpm | 221 hp @ 5500 rpm |
| Torque | 295 lb-ft @ 1600 rpm | 258 lb-ft @ 1800 rpm |
| Number of Valves | 16 | 16 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 8-speed automated manual |
| Drivetrain Type | rear wheel drive | front wheel drive |
Fuel
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 28/35 MPG | 26/36 MPG |
| EPA Fuel Economy (Combined) | 31 MPG | 30 MPG |
| EPA Driving Range (City/Highway) | 436.8/546.0 mi. | 351.0/486.0 mi. |
| Fuel Tank Capacity | 15.6 gal. | 13.5 gal. |
Comfort & Convenience
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Cruise Control on Steering Wheel | ✓ | ✓ |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Universal Remote Transmitter | ✓ | — |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Dual Zone Climate Control | ✓ | ✓ |
| Rear Ventilation Ducts | ✓ | ✓ |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Front Parking Sensors | — | ✓ |
| Rear Parking Sensors | — | ✓ |
| Driver Assisted Parking Assist | — | ✓ |
| Leather Steering Wheel | — | ✓ |
In Car Entertainment
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Infotainment Display | 14.9 in | 10.25 in |
| AM/FM Stereo | ✓ | ✓ |
| Stereo Power | 205W | — |
| Speaker System | 10 | — |
| Subwoofer Count | 2 | — |
| Android Auto (Wireless) | ✓ | ✓ |
| Apple CarPlay (Wireless) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 12 months | 6 months |
Power Feature
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass | 1st Row Power Glass Extended |
| Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Front Head Room | 38.7 in. | 38.5 in. |
| Front Leg Room | 42.0 in. | 41.8 in. |
| Front Shoulder Room | 56.0 in. | 55.1 in. |
| Seat Material: Leatherette | ✓ | ✓ |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 10-way | 8-way |
| Driver Seat Manual Adjustments | 2-way | — |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | Power |
| Driver Seat Thigh Extension | ✓ | ✓ |
| Driver Seat Memory Settings | 2 | 3 |
| Passenger Seat Power Adjustments | 10-way | 8-way |
| Passenger Seat Manual Adjustments | 2-way | — |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | Power |
| Passenger Seat Thigh Extension | ✓ | ✓ |
| Driver Seat Heating | Multi-level | — |
| Passenger Seat Heating | Multi-level | — |
| Passenger Seat Memory Settings | — | 3 |
Rearseats
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Rear Head Room | 37.6 in. | 35.7 in. |
| Rear Leg Room | 35.2 in. | 33.9 in. |
| Rear Shoulder Room | 54.6 in. | 54.0 in. |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | — |
| Pass-Thru Center Armrest | ✓ | — |
| Folding Center Armrest | — | ✓ |
Tires and Wheels
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Wheel Finish | Painted Alloy | — |
| Wheel Size | 18 x 7.5 in | 18 x 7.5 in |
| Tire Size | 225/45R18 | 225/45R18 |
| Run Flat Tires | ✓ | ✓ |
| Wheel Material | — | Alloy |
Suspension
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | BMW | Mercedes-Benz |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 12 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Roadside Assistance | 4 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| Complimentary Scheduled Maintenance | 3 yr./ 36000 mi. | — |
| Hybrid Component Warranty | — | 6 yr./ 62000 mi. |
Frequently Asked Questions
Common questions about comparing the 2026 BMW 3 Series and 2026 Mercedes-Benz CLA.
What is the primary difference in drivetrain layout between the two models?
The 2026 BMW 3 Series comes standard with rear-wheel drive, which is often favored for balanced handling dynamics. Conversely, the 2026 Mercedes-Benz CLA utilizes a front-wheel-drive layout in its base configuration.
How much more horsepower does the BMW 3 Series offer over the Mercedes-Benz CLA?
The BMW 3 Series generates 255 hp, providing a significant 34 hp advantage over the Mercedes-Benz CLA, which produces 221 hp.
Is one vehicle noticeably larger or more accommodating inside?
Yes, the BMW 3 Series is slightly longer at 185.9 inches and offers substantially more trunk space, boasting 16.9 cu ft versus the CLA's 11.6 cu ft cargo capacity.
Do both vehicles require the same type of gasoline?
Yes, both the 2026 BMW 3 Series and the 2026 Mercedes-Benz CLA specify that premium unleaded fuel is required for optimal performance.
Which car offers better overall fuel efficiency?
While their combined ratings are close (31 MPG for the BMW vs. 30 MPG for the CLA), the CLA edges out slightly on the highway at 36 MPG compared to the BMW’s 35 MPG.
What is the MSRP gap separating these two sedans?
The 2026 Mercedes-Benz CLA begins at $42,750, creating a notable price difference of $4,750 when compared to the 2026 BMW 3 Series starting price of $47,500.
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