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Compare
Compare 2–4 cars side by side. Every figure is sourced; the best value in each comparable row is marked.
| Specification | Porsche2025 Porsche Cayenne S | BMW2025 BMW X3 M50 xDrive |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 169 mphBestManufacturer claim · Porsche | 155 mphManufacturer claim · BMW |
| 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. | 211.7 hp/tBestCalculated | 191.1 hp/tCalculated |
| Lateral accelerationSkidpad radius and surface affect results. | 0.90 gIndependent test · MotorTrend | — |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 4.70 sManufacturer claim · Porsche | 4.40 sBestManufacturer claim · BMW |
| 0–100 km/hLower is better | 5.00 sManufacturer claim · Porsche | 4.60 sBestManufacturer claim · BMW |
| 0–100 mph | — | 10.50 sIndependent test · Car and Driver |
| 0–200 km/h | 18.6 sManufacturer claim · Porsche | — |
| Quarter-mile elapsed time | 13.20 sManufacturer claim · Porsche | — |
| Braking | ||
| 60–0 mph braking distance | 112.0 ftIndependent test · MotorTrend | — |
| 70–0 mph braking distance | — | 159.0 ftIndependent test · Car and Driver |
| 100–0 mph braking distance | — | 324.0 ftIndependent test · Car and Driver |
| Engine & Powertrain | ||
| Peak powerHigher is better | 468 hpBestManufacturer claim · Porsche | 393 hpManufacturer claim · BMW |
| Peak torqueHigher is better | 442 lb-ftBestManufacturer claim · Porsche | 428 lb-ftManufacturer claim · BMW |
| Engine displacement | 4000.0 ccManufacturer claim · Porsche | 2998.0 ccManufacturer claim · BMW |
| Cylinder count | 8Manufacturer claim · Porsche | 6Manufacturer claim · BMW |
| Engine layout | V8Manufacturer claim · Porsche | Inline-6Manufacturer claim · BMW |
| Engine placement | FrontManufacturer claim · Porsche | Front |
| Dimensions | ||
| Length | 194 inManufacturer claim · Porsche | 187 inManufacturer claim · BMW |
| Width | 79 inManufacturer claim · Porsche | 76 inManufacturer claim · BMW |
| Height | 67 inManufacturer claim · Porsche | 65 inManufacturer claim · BMW |
| Wheelbase | 114 inManufacturer claim · Porsche | 113 inManufacturer claim · BMW |
| Ground clearance | — | 8 inManufacturer claim · BMW |
| Weight | ||
| Curb weightLower is better | 4874 lbManufacturer claim · Porsche | 4535 lbBestManufacturer claim · BMW |
| Fuel Economy | ||
| Fuel economy (combined)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 18.0 mpgHomologation · US EPA | 27.0 mpgBestHomologation · US EPA |
| Fuel economy (city)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 16.0 mpgHomologation · US EPA | 25.0 mpgBestHomologation · US EPA |
| Fuel economy (highway)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 21.0 mpgHomologation · US EPA | 30.0 mpgBestHomologation · US EPA |
| Fuel tank capacity | 23.7 galManufacturer claim · Porsche | 17.2 galManufacturer claim · BMW |
| Estimated range (combined)Higher is betterEstimated from tank capacity and quoted combined economy — not an instrumented range. | ||
| Practicality | ||
| Cargo volumeHigher is better | 27 ft³Manufacturer claim · Porsche | 32 ft³BestManufacturer claim · BMW |
| Seats | 5Manufacturer claim · Porsche | 5Manufacturer claim · BMW |
| Towing capacity (braked) | 7716 lbManufacturer claim · Porsche | — |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $101,600Homologation · US EPA | $64,700Homologation · US EPA |
| Aerodynamics | ||
| Drag coefficient (Cd) | 0.35 :1Manufacturer claim · Porsche | — |
| Tires & Wheels | ||
| Front tire size | 255/55 R20Manufacturer claim · Porsche | 255/45 R20Manufacturer claim · BMW |
| Rear tire size | 295/45 R20Manufacturer claim · Porsche | 285/40 R20Manufacturer claim · BMW |
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 | Twin-turboManufacturer claim · Porsche | TurbochargedManufacturer claim · BMW |
|---|
| Redline | 6800Manufacturer claim · Porsche | — |
|---|
| Transmission type | Torque-converter automaticManufacturer claim · Porsche | Torque-converter automaticManufacturer claim · BMW |
|---|
| Number of gears | 8Manufacturer claim · Porsche | 8Manufacturer claim · BMW |
|---|
| 464 miBestCalculated |
| Estimated range (highway)Higher is betterEstimated from tank capacity and quoted highway economy — not an instrumented range. | 498 miCalculated | 516 miBestCalculated |
|---|
| Estimated range (city)Higher is betterEstimated from tank capacity and quoted city economy — not an instrumented range. | 379 miCalculated | 430 miBestCalculated |
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