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Compare 2–4 cars side by side. Every figure is sourced; the best value in each comparable row is marked.
| Specification | BMW2025 BMW 230i Coupe | Mercedes-Benz2026 Mercedes-Benz CLA 250 4MATIC Coupe |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 155 mphBestIndependent test · Car and Driver | 130 mphManufacturer claim · Mercedes-Benz USA |
| Power-to-weight ratioHigher is betterCalculated from peak power and curb weight — figures quoted against a different weight basis (e.g. dry or DIN) will differ. | 158.2 hp/tBestCalculated | 134.7 hp/tCalculated |
| Lateral accelerationSkidpad radius and surface affect results. | 0.92 gIndependent test · Car and Driver | — |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 5.10 sBestIndependent test · Car and Driver | 6.30 sManufacturer claim · Mercedes-Benz USA |
| 0–100 km/hLower is better | 5.90 sBestManufacturer claim · BMW | 6.40 sManufacturer claim · Mercedes-Benz USA |
| 0–100 mph | 13.40 sIndependent test · Car and Driver | — |
| Quarter-mile elapsed time | 13.70 sIndependent test · Car and Driver | — |
| Quarter-mile trap speed | 101.0 mphIndependent test · Car and Driver | — |
| Braking | ||
| 70–0 mph braking distance | 152.0 ftIndependent test · Car and Driver | — |
| 100–0 mph braking distance | 309.0 ftIndependent test · Car and Driver | — |
| Engine & Powertrain | ||
| Peak powerHigher is better | 255 hpBestIndependent test · Car and Driver | 221 hpManufacturer claim · Mercedes-Benz USA |
| Peak torqueHigher is better | 295 lb-ftBestIndependent test · Car and Driver | 258 lb-ftManufacturer claim · Mercedes-Benz USA |
| Engine displacement | 1998.0 ccIndependent test · Car and Driver | 2000.0 ccManufacturer claim · Mercedes-Benz USA |
| Cylinder count | 4Homologation · US EPA | 4Manufacturer claim · Mercedes-Benz USA |
| Engine layout | Inline-4Independent test · Car and Driver | Inline-4Manufacturer claim · Mercedes-Benz USA |
| Engine placement | Front | |
| Dimensions | ||
| Length | 179 inIndependent test · Car and Driver | 185 inManufacturer claim · Mercedes-Benz USA |
| Width | 72 inIndependent test · Car and Driver | 72 inManufacturer claim · Mercedes-Benz USA |
| Height | 55 inIndependent test · Car and Driver | 57 inManufacturer claim · Mercedes-Benz USA |
| Wheelbase | 108 inIndependent test · Car and Driver | 107 inManufacturer claim · Mercedes-Benz USA |
| Weight | ||
| Curb weightLower is better | 3554 lbBestIndependent test · Car and Driver | 3616 lbManufacturer claim · Mercedes-Benz USA |
| Fuel Economy | ||
| Fuel economy (combined)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 30.0 mpgHomologation · US EPA | — |
| Fuel economy (city)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 26.0 mpgHomologation · US EPA | — |
| Fuel economy (highway)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 35.0 mpgHomologation · US EPA | — |
| Fuel tank capacity | 13.7 galHomologation · US EPA | 13.5 galManufacturer claim · Mercedes-Benz USA |
| Estimated range (combined)Estimated from tank capacity and quoted combined economy — not an instrumented range. | 411 miCalculated | — |
| Estimated range (highway)Estimated from tank capacity and quoted highway economy — not an instrumented range. | ||
| Practicality | ||
| Cargo volumeHigher is better | 10 ft³Independent test · Car and Driver | 12 ft³BestManufacturer claim · Mercedes-Benz USA |
| Seats | 4Independent test · Car and Driver | 5Manufacturer claim · Mercedes-Benz USA |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $39,600Homologation · US EPA | $44,750Manufacturer claim · Mercedes-Benz USA |
| Aerodynamics | ||
| Drag coefficient (Cd) | — | 0.27 :1Manufacturer claim · Mercedes-Benz USA |
| Tires & Wheels | ||
| Front tire size | 225/40 ZR19Independent test · Car and Driver | 225/45R18Manufacturer claim · Mercedes-Benz USA |
| Rear tire size | 255/35 ZR19Independent test · Car and Driver | 225/45R18Manufacturer claim · Mercedes-Benz USA |
Every figure is the car’s preferred, sourced value. “Best” marks the strongest value in a row, judged on the canonical measurement (so a winner is correct whichever unit system you view). Open a car to see each value’s source, original units, and alternates.
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Add a value with its source. An editor verifies every submission against its citation before it appears on the site.
| — |
| Induction type | TurbochargedHomologation · US EPA | TurbochargedManufacturer claim · Mercedes-Benz USA |
|---|
| Transmission type | Torque-converter automaticIndependent test · Car and Driver | Automated manualManufacturer claim · Mercedes-Benz USA |
|---|
| Number of gears | 8Homologation · US EPA | 8Manufacturer claim · Mercedes-Benz USA |
|---|
| — |
| Estimated range (city)Estimated from tank capacity and quoted city economy — not an instrumented range. | 356 miCalculated | — |
|---|