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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 | Mercedes-Benz2026 Mercedes-Benz EQS 450 4MATIC Sedan | Porsche2025 Porsche Panamera 4 |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 130 mphManufacturer claim · Mercedes-Benz USA | 168 mphBestManufacturer claim · Porsche |
| 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. | 136.0 hp/tCalculated | 175.4 hp/tBestCalculated |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 5.40 sManufacturer claim · Mercedes-Benz USA | 4.50 sBestManufacturer claim · Porsche |
| 0–100 km/hLower is better | 5.70 sManufacturer claim · Mercedes-Benz USA | 5.00 sBestManufacturer claim · Porsche |
| 0–100 mph | 12.90 sIndependent test · Car and Driver | — |
| 0–200 km/h | — | 20.3 sManufacturer claim · Porsche |
| Quarter-mile elapsed time | — | 13.30 sManufacturer claim · Porsche |
| Engine & Powertrain | ||
| Peak powerHigher is better | 355 hpBestManufacturer claim · Mercedes-Benz USA | 348 hpManufacturer claim · Porsche |
| Peak torqueHigher is better | 590 lb-ftBestManufacturer claim · Mercedes-Benz USA | 368 lb-ftManufacturer claim · Porsche |
| Engine displacement | — | 2894.0 ccManufacturer claim · Porsche |
| Cylinder count | — | 6Manufacturer claim · Porsche |
| Engine layout | ElectricManufacturer claim · Mercedes-Benz USA | V6Manufacturer claim · Porsche |
| Engine placement | — | Front |
| Dimensions | ||
| Length | 208 inManufacturer claim · Mercedes-Benz USA | 199 inManufacturer claim · Porsche |
| Width | 76 inManufacturer claim · Mercedes-Benz USA | 78 inManufacturer claim · Porsche |
| Height | 60 inManufacturer claim · Mercedes-Benz USA | 56 inManufacturer claim · Porsche |
| Wheelbase | 126 inManufacturer claim · Mercedes-Benz USA | 116 inManufacturer claim · Porsche |
| Weight | ||
| Curb weightLower is better | 5754 lbManufacturer claim · Mercedes-Benz USA | 4374 lbBestManufacturer claim · Porsche |
| Fuel Economy | ||
| Fuel economy (combined)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 21.0 mpgHomologation · US EPA |
| Fuel economy (city)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 18.0 mpgHomologation · US EPA |
| Fuel economy (highway)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 25.0 mpgHomologation · US EPA |
| Fuel tank capacity | — | 23.7 galManufacturer claim · Porsche |
| Estimated range (combined)Estimated from tank capacity and quoted combined economy — not an instrumented range. | — | 498 miCalculated |
| Estimated range (highway)Estimated from tank capacity and quoted highway economy — not an instrumented range. | ||
| Electric System | ||
| Battery gross capacity | 118.0 kWhManufacturer claim · Mercedes-Benz USA | — |
| EPA range | 367 miManufacturer claim · Mercedes-Benz USA | — |
| Peak DC charging power | 200 kWManufacturer claim · Mercedes-Benz USA | — |
| Peak AC charging power | 9.6 kWManufacturer claim · Mercedes-Benz USA | — |
| 10–80% charge time | 31 minManufacturer claim · Mercedes-Benz USA | — |
| Practicality | ||
| Cargo volumeHigher is better | 22 ft³BestManufacturer claim · Mercedes-Benz USA | 18 ft³Manufacturer claim · Porsche |
| Seats | 5Manufacturer claim · Mercedes-Benz USA | 4Manufacturer claim · Porsche |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $102,900Manufacturer claim · Mercedes-Benz USA | $109,800Manufacturer claim · Porsche |
| Aerodynamics | ||
| Drag coefficient (Cd) | — | 0.29 :1Manufacturer claim · Porsche |
| Tires & Wheels | ||
| Front tire size | 255/45R20Manufacturer claim · Mercedes-Benz USA | 265/45 ZR19Manufacturer claim · Porsche |
| Rear tire size | 255/45R20Manufacturer claim · Mercedes-Benz USA | 295/40 ZR19Manufacturer claim · Porsche |
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 | ElectricManufacturer claim · Mercedes-Benz USA | Twin-turboManufacturer claim · Porsche |
|---|
| Redline | — | 6800Manufacturer claim · Porsche |
|---|
| Transmission type | Single-speedManufacturer claim · Mercedes-Benz USA | Dual-clutch (PDK)Manufacturer claim · Porsche |
|---|
| Number of gears | 1Manufacturer claim · Mercedes-Benz USA | 8Manufacturer claim · Porsche |
|---|
| 593 miCalculated |
| Estimated range (city)Estimated from tank capacity and quoted city economy — not an instrumented range. | — | 427 miCalculated |
|---|