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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 540i xDrive Sedan | Mercedes-Benz2026 Mercedes-Benz E 450 4MATIC Sedan |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 152 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. | 189.4 hp/tBestCalculated | 188.9 hp/tCalculated |
| Lateral accelerationHigher is betterSkidpad radius and surface affect results. | 0.92 gIndependent test · Car and Driver | 0.93 gBestIndependent test · Car and Driver |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 4.00 sBestIndependent test · Car and Driver | 4.40 sManufacturer claim · Mercedes-Benz USA |
| 0–100 km/hLower is better | 4.70 sManufacturer claim · BMW | 4.50 sBestManufacturer claim · Mercedes-Benz USA |
| 0–100 mphLower is better | 10.20 sBestIndependent test · Car and Driver | 10.90 sIndependent test · Car and Driver |
| Quarter-mile elapsed time | 12.50 sIndependent test · Car and Driver | — |
| Quarter-mile trap speed | 111.0 mphIndependent test · Car and Driver | — |
| Braking | ||
| 70–0 mph braking distanceLower is better | 163.0 ftIndependent test · Car and Driver | 159.0 ftBestIndependent test · Car and Driver |
| 100–0 mph braking distanceLower is better | 328.0 ftIndependent test · Car and Driver | 327.0 ftBestIndependent test · Car and Driver |
| Engine & Powertrain | ||
| Peak powerHigher is better | 375 hpTieIndependent test · Car and Driver | 375 hpTieManufacturer claim · Mercedes-Benz USA |
| Peak torqueHigher is better | 398 lb-ftBestIndependent test · Car and Driver | 369 lb-ftManufacturer claim · Mercedes-Benz USA |
| Engine displacement | 3000.0 ccHomologation · US EPA | 3000.0 ccManufacturer claim · Mercedes-Benz USA |
| Cylinder count | 6Homologation · US EPA | 6Manufacturer claim · Mercedes-Benz USA |
| Engine layout | Inline-6Independent test · Wikipedia | Inline-6Manufacturer claim · Mercedes-Benz USA |
| Engine placement | ||
| Dimensions | ||
| Length | 199 inIndependent test · Wikipedia | 195 inManufacturer claim · Mercedes-Benz USA |
| Width | 75 inIndependent test · Wikipedia | 74 inManufacturer claim · Mercedes-Benz USA |
| Height | 60 inIndependent test · Wikipedia | 58 inManufacturer claim · Mercedes-Benz USA |
| Wheelbase | 118 inIndependent test · Wikipedia | 117 inManufacturer claim · Mercedes-Benz USA |
| Weight | ||
| Curb weightLower is better | 4365 lbBestIndependent test · Car and Driver | 4376 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. | 28.0 mpgHomologation · US EPA | — |
| Fuel economy (city)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 26.0 mpgBestHomologation · US EPA | 23.0 mpgManufacturer claim · Mercedes-Benz USA |
| Fuel economy (highway)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 33.0 mpgTieHomologation · US EPA | 33.0 mpgTieManufacturer claim · Mercedes-Benz USA |
| Fuel tank capacity | 15.9 galHomologation · US EPA | 17.4 galManufacturer claim · Mercedes-Benz USA |
| Estimated range (combined)Estimated from tank capacity and quoted combined economy — not an instrumented range. | 445 mi | |
| Practicality | ||
| Cargo volume | — | 13 ft³Manufacturer claim · Mercedes-Benz USA |
| Seats | 5Independent test · Car and Driver | 5Manufacturer claim · Mercedes-Benz USA |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $65,800Homologation · US EPA | $72,300Manufacturer claim · Mercedes-Benz USA |
| Tires & Wheels | ||
| Front tire size | 245/35R-21Independent test · Car and Driver | 225/55R18Manufacturer claim · Mercedes-Benz USA |
| Rear tire size | 275/30R-21Independent test · Car and Driver | 225/55R18Manufacturer 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.
Community index
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 automaticHomologation · US EPA | Torque-converter automaticManufacturer claim · Mercedes-Benz USA |
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| Number of gears | 8Homologation · US EPA | 9Manufacturer claim · Mercedes-Benz USA |
|---|
| — |
| Estimated range (highway)Higher is betterEstimated from tank capacity and quoted highway economy — not an instrumented range. | 525 miCalculated | 574 miBestCalculated |
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| Estimated range (city)Higher is betterEstimated from tank capacity and quoted city economy — not an instrumented range. | 413 miBestCalculated | 400 miCalculated |
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