2025 Cadillac XT6 vs 2025 Mercedes-Benz GLA-Class
Comparison Overview
The most significant numerical divergence between the 2025 Cadillac XT6 and the 2025 Mercedes-Benz GLA-Class is fuel economy, where the GLA-Class delivers a 6 MPG advantage in combined efficiency (29 MPG vs. 23 MPG). The MSRP also highlights a substantial $6,195 difference, with the XT6 starting at $49,195 compared to the GLA-Class's $43,000. Despite the price gap, the XT6 offers superior raw size metrics, measuring 198.5 inches long versus the GLA's 173.6 inches. In terms of power, the XT6 provides slightly more horsepower at 235 hp compared to the GLA’s 221 hp, though both vehicles share an identical 258 lb-ft of torque rating. However, the GLA-Class compensates for its smaller footprint with better cargo space (15.4 cu ft) relative to the XT6's 12.6 cu ft, despite the XT6’s greater exterior bulk.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Mercedes-Benz GLA-Class
The GLA-Class wins for commuters due to its superior 29 combined MPG efficiency compared to the XT6's 23 MPG.
2025 Cadillac XT6
The XT6 is the winner for families because its larger exterior dimensions (198.5 inches length) suggest greater potential passenger or comfort room.
2025 Cadillac XT6
The XT6 takes the enthusiast nod because its 235 hp output is nominally higher than the GLA-Class's 221 hp.
2025 Mercedes-Benz GLA-Class
The GLA-Class offers better value, costing $6,195 less while achieving significantly better fuel economy.
Choose the Cadillac XT6 if...
- Your priority is maximizing overall vehicle length, as the XT6 measures 198.5 inches.
- You prefer the stability offered by the 9-speed automatic transmission over an 8-speed automated manual.
- You require the marginally higher peak output of 235 horsepower.
Choose the Mercedes-Benz GLA-Class if...
- Maximizing fuel economy is critical, given its 29 combined MPG versus 23 MPG for the XT6.
- You seek a lower entry price point, as the GLA starts at $43,000, undercutting the XT6 by $6,195.
- You prioritize cargo utility within the segment, as the GLA offers 15.4 cu ft compared to the XT6's 12.6 cu ft.
Key Dimensions
| Dimension | Cadillac XT6 | Mercedes-Benz GLA-Class |
|---|---|---|
| Length | 198.5" | 173.6" |
| Width | 77.3" | 72.2" |
| Height | 69.9" | 63.5" |
| Wheelbase | 113.0" | 107.4" |
Features Comparison
Safety
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Blind Spot Monitor | ✓ | ✓ |
| Lane Departure Warning | ✓ | — |
| Lane Keeping Assist System | ✓ | — |
| Rear Cross Traffic 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 |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Cornering Lights | ✓ | — |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | ✓ |
| Rear Headrests | 2 | 3 |
| Rear Center 3-Point Seatbelt | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Driver Attention Alert | — | ✓ |
| Brake Drying | — | ✓ |
| Front Fog Lights | — | ✓ |
| Rear Height Adjustable Headrests | — | ✓ |
| Anti-Theft Alarm System (Remote) | — | ✓ |
Engine
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | inline 4 |
| Base Engine Type | gas | mild hybrid |
| Horsepower | 235 hp @ 5000 rpm | 221 hp @ 5500 rpm |
| Torque | 258 lb-ft @ 1500 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 | ✓ | ✓ |
| Cylinder Deactivation | ✓ | — |
Drive Train
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Transmission Type | 9-speed shiftable automatic | 8-speed automated manual |
| Drivetrain Type | front wheel drive | front wheel drive |
Fuel
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 21/27 MPG | 26/34 MPG |
| EPA Fuel Economy (Combined) | 23 MPG | 29 MPG |
| EPA Driving Range (City/Highway) | 399.0/513.0 mi. | 351.0/459.0 mi. |
| Fuel Tank Capacity | 19.0 gal. | 13.5 gal. |
Comfort & Convenience
| Feature | Cadillac | 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 | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| 3rd Row Cupholders | ✓ | — |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Power Rear Seat Easy Entry | ✓ | — |
| Leather Steering Wheel | ✓ | ✓ |
| Three Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts with Fan Control | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Sun Sensor | ✓ | — |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Driver Assisted Parking Assist | — | ✓ |
| Wireless Charging Pad | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Rear Ventilation Ducts | — | ✓ |
In Car Entertainment
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Infotainment Display | 8.0 in | 10.25 in |
| AM/FM Stereo | ✓ | ✓ |
| Premium Speaker Brand | Bose | — |
| Speaker System | 8 | — |
| Android Auto (Wireless) | ✓ | ✓ |
| Apple CarPlay (Wireless) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| Auxiliary Audio Input | ✓ | — |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 6 months |
| Speed Sensitive Volume Control | ✓ | — |
Power Feature
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass Extended | — |
| Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Front Head Room | 39.8 in. | 39.0 in. |
| Front Leg Room | 41.2 in. | 41.0 in. |
| Front Shoulder Room | 58.3 in. | 55.9 in. |
| Front Hip Room | 50.1 in. | — |
| Seat Material: Leatherette | ✓ | ✓ |
| Front Seat Type: Bucket | ✓ | ✓ |
| Driver Seat Power Adjustments | 8-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Memory Settings | 2 | 3 |
| Passenger Seat Power Adjustments | 6-way | 8-way |
| Passenger Seat Manual Adjustments | 2-way | — |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Heating | Multi-level | — |
| Passenger Seat Heating | Multi-level | — |
| Driver Seat Lumbar Support | — | Power |
| Driver Seat Thigh Extension | — | ✓ |
| Passenger Seat Lumbar Support | — | Power |
| Passenger Seat Thigh Extension | — | ✓ |
| Passenger Seat Memory Settings | — | 3 |
Rearseats
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Rear Head Room | 39.1 in. | 38.1 in. |
| Rear Leg Room | 39.1 in. | 38.0 in. |
| Rear Shoulder Room | 57.4 in. | 54.8 in. |
| Rear Hip Room | 55.7 in. | — |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Center Armrest | ✓ | ✓ |
| Power Folding Third Row Seat | ✓ | — |
| Reclining Rear Seats | — | ✓ |
Tires and Wheels
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Wheel Finish | Painted Alloy | — |
| Wheel Diameter | 18 in | — |
| Tire Type | All Season | — |
| Tire Size | P235/65R | 235/55R18 |
| Spare Tire Type | Temporary | — |
| Spare Tire Location | Inside Mounted | — |
| Wheel Material | — | Alloy |
| Wheel Size | — | 18 x 7.5 in |
| Run Flat Tires | — | ✓ |
Suspension
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Cadillac | Mercedes-Benz |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 6 yr./ 70000 mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Roadside Assistance | 6 yr./ 70000 mi. | 4 yr./ 50000 mi. |
| Complimentary Scheduled Maintenance | 1 yr./ unlimited mi. | — |
Frequently Asked Questions
Common questions about comparing the 2025 Cadillac XT6 and 2025 Mercedes-Benz GLA-Class.
What is the main powertrain difference between the 2025 Cadillac XT6 and the 2025 Mercedes-Benz GLA-Class?
The XT6 produces 235 horsepower routed through a 9-speed shiftable automatic transmission. Conversely, the GLA-Class is rated at 221 horsepower paired with an 8-speed automated manual transmission.
How significant is the fuel economy disparity between these two crossovers?
The difference is substantial; the GLA-Class achieves 29 combined MPG (26 City/34 Highway), while the XT6 is rated significantly lower at 23 combined MPG (21 City/27 Highway).
Which vehicle offers superior cargo capacity based on specifications?
The Mercedes-Benz GLA-Class offers slightly more usable cargo volume at 15.4 cubic feet compared to the Cadillac XT6's 12.6 cubic feet.
Does the difference in price reflect a major difference in torque output?
No, despite the $6,195 price gap favoring the GLA-Class, both vehicles produce an identical 258 lb-ft of torque.
Which crossover is physically larger: the XT6 or the GLA-Class?
The Cadillac XT6 is significantly larger in length, measuring 198.5 inches, which is nearly 25 inches longer than the GLA-Class's 173.6-inch length.
Are there differences in the fuel requirements for these models?
Yes, while both recommend premium fuel, the GLA-Class explicitly requires premium unleaded, whereas the XT6 only lists it as recommended.
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