Cadillac CT4 vs Mercedes-Benz C300
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2026 Mercedes-Benz C300
Overview
| Spec | Cadillac CT4Luxury | Mercedes-Benz C300C 300 |
|---|---|---|
| Selected trim | Luxury | C 300 |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | premium unleaded (recommended) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | gas | mild hybrid |
| Model year | 2026 | 2026 |
Pricing & market
| Spec | Cadillac CT4Luxury | Mercedes-Benz C300C 300 |
|---|---|---|
| MSRP | $35,600 (best) | $49,650 |
| Lowest listing price | $21,900 (best) | — |
| Median listing price | $27,283 (best) | — |
| Highest listing price | $42,900 (best) | — |
| For sale now | 7 (best) | 0 |
Fuel economy & range
| Spec | Cadillac CT4Luxury | Mercedes-Benz C300C 300 |
|---|---|---|
| Combined MPG | 26 MPG | 29 MPG (best) |
| City MPG | 22 MPG | 25 MPG (best) |
| Highway MPG | 32 MPG | 35 MPG (best) |
| Fuel tank | 17 gal | 17.4 gal (best) |
Performance
| Spec | Cadillac CT4Luxury | Mercedes-Benz C300C 300 |
|---|---|---|
| Horsepower | 237 hp | 255 hp (best) |
| Torque | 258 lb-ft | 295 lb-ft (best) |
| Engine size | 2 L | 2 L |
| Cylinders | I4 | I4 |
Size & capability
| Spec | Cadillac CT4Luxury | Mercedes-Benz C300C 300 |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 10.7 cu ft | 11.6 cu ft (best) |
| Curb weight | 3,422 lbs (best) | 3,825 lbs |
| Wheelbase | 109 in | 112.8 in (best) |
| Length | 187.2 in (best) | 187 in |
| Width | 71.4 in | 74.4 in (best) |
| Height | 56 in | 56.6 in (best) |
Safety & recalls
| Spec | Cadillac CT4Luxury | Mercedes-Benz C300C 300 |
|---|---|---|
| NHTSA overall | Not Rated | — |
| Frontal crash (driver) | Not Rated | — |
| Frontal crash (passenger) | Not Rated | — |
| Side crash (driver) | Not Rated | — |
| Side crash (passenger) | Not Rated | — |
| Side pole | Not Rated | — |
| Rollover | Not Rated | — |
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | Cadillac CT4 | Mercedes-Benz C300 |
|---|---|---|
| 1 | Luxury $35,600 MSRP(Currently comparing) | C 300 $49,650 MSRP(Currently comparing) |
| 2 | Premium Luxury $39,900 MSRP | C 300 4MATIC $51,650 MSRP |
| 3 | Sport $43,800 MSRP | — |
| 4 | V $50,000 MSRP | — |
| 5 | V Blackwing $62,700 MSRP | — |
Live inventory
Cadillac CT47 for sale
See all
Used2023 Cadillac CT4
Premium Luxury
Gray•Jet Black with Jet Black accents21,760 mi$30,398Kendall Hyundai
Miami, FL
Certified2023 Cadillac CT4
Premium Luxury
Black Raven56,110 mi$28,936Bayway Cadillac of the Woodlands
The Woodlands, TX
Used2021 Cadillac CT4
Sport
Black•Black78,315 mi$24,283Hanania INFINITI of Orange Park
Jacksonville, FL
Used2026 Cadillac CT4
Premium Luxury
Summit White•Whisper Beige7,845 mi$42,900Suttle Buick GMC of Newport News
Newport News, VA
Certified2020 Cadillac CT4
Sport
wave metallic•Jet Black87,395 mi$21,900Suttle Buick GMC of Newport News
Newport News, VA
Certified2022 Cadillac CT4
Premium Luxury
Black Raven•Jet BlackN/A$26,500Suttle Buick GMC of Newport News
Newport News, VA
Cadillac CT4 vs Mercedes-Benz C300 FAQ
- Which is better: 2026 Cadillac CT4 or 2026 Mercedes-Benz C300?
- It depends on priorities. OpenDealer compares 2026 Cadillac CT4 vs 2026 Mercedes-Benz C300 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 Cadillac CT4 or 2026 Mercedes-Benz C300?
- Based on starting MSRP, the 2026 Cadillac CT4 starts lower at $35,600. Live Cadillac CT4 listings start at $21,900.
- Which has better startingMsrp: 2026 Cadillac CT4 or 2026 Mercedes-Benz C300?
- The 2026 Cadillac CT4 leads on startingMsrp in this comparison (35,600).
- Which has better combinedMpg: 2026 Cadillac CT4 or 2026 Mercedes-Benz C300?
- The 2026 Mercedes-Benz C300 leads on combinedMpg in this comparison (29).
- Which has better horsepower: 2026 Cadillac CT4 or 2026 Mercedes-Benz C300?
- The 2026 Cadillac CT4 leads on horsepower in this comparison (472).
- How do the NHTSA safety ratings compare for 2026 Cadillac CT4 vs 2026 Mercedes-Benz C300?
- NHTSA overall crash-test ratings in this comparison: Cadillac CT4 (Not Rated/5 NHTSA overall).