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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 | Audi2027 Audi RS Q8 performance | Porsche2025 Porsche Cayenne Turbo E-Hybrid |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 190 mphBestManufacturer claim · Audi of America | 183 mphManufacturer 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. | 254.5 hp/tCalculated | 283.8 hp/tBestCalculated |
| Lateral accelerationSkidpad radius and surface affect results. | — | 0.96 gIndependent test · MotorTrend |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 3.40 sTieManufacturer claim · Audi of America | 3.50 sTieManufacturer claim · Porsche |
| 0–100 km/hLower is better | 3.60 sTieManufacturer claim · Audi of America | 3.70 sTieManufacturer claim · Porsche |
| 0–200 km/hLower is better | 12.9 sIndependent test · auto motor und sport | 12.2 sBestManufacturer claim · Porsche |
| Quarter-mile elapsed time | — | 11.70 sManufacturer claim · Porsche |
| Braking | ||
| 70–0 mph braking distance | 142.0 ftIndependent test · Car and Driver | — |
| 100–0 mph braking distance | 283.0 ftIndependent test · Car and Driver | — |
| Engine & Powertrain | ||
| Peak powerHigher is better | 631 hpManufacturer claim · Audi of America | 729 hpBestManufacturer claim · Porsche |
| Peak torqueHigher is better | 627 lb-ftManufacturer claim · Audi of America | 700 lb-ftBestManufacturer claim · Porsche |
| Engine displacement | 4000.0 ccManufacturer claim · Audi of America | 4000.0 ccManufacturer claim · Porsche |
| Cylinder count | 8Manufacturer claim · Audi of America | 8Manufacturer claim · Porsche |
| Engine layout | V8Manufacturer claim · Audi of America | V8Manufacturer claim · Porsche |
| Engine placement | — | |
| Dimensions | ||
| Length | — | 194 inManufacturer claim · Porsche |
| Width | — | 79 inManufacturer claim · Porsche |
| Height | — | 66 inManufacturer claim · Porsche |
| Wheelbase | — | 114 inManufacturer claim · Porsche |
| Weight | ||
| Curb weightLower is better | 5467 lbBestManufacturer claim · Audi of America | 5664 lbManufacturer claim · Porsche |
| Fuel Economy | ||
| Fuel economy (combined)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 22.0 mpgHomologation · US EPA |
| Fuel tank capacity | — | 18.5 galManufacturer claim · Porsche |
| Estimated range (combined)Estimated from tank capacity and quoted combined economy — not an instrumented range. | — | 407 miCalculated |
| Electric System | ||
| Battery gross capacity | — | 25.9 kWhManufacturer claim · Porsche |
| Battery usable capacity | — | 21.8 kWhManufacturer claim · Porsche |
| EPA range | — | 24 miHomologation · US EPA |
| Peak AC charging power | — | 11.0 kWManufacturer claim · Porsche |
| Practicality | ||
| Cargo volume | — | 26 ft³Manufacturer claim · Porsche |
| Seats | — | 5Manufacturer claim · Porsche |
| Towing capacity (braked) | — | 6613 lbManufacturer claim · Porsche |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $139,700Manufacturer claim · Audi of America | $157,000Homologation · US EPA |
| Aerodynamics | ||
| Drag coefficient (Cd) | — | 0.35 :1Manufacturer claim · Porsche |
| Tires & Wheels | ||
| Front tire size | — | 285/45 R21Manufacturer claim · Porsche |
| Rear tire size | — | 285/45 R21Manufacturer 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.
| FrontManufacturer claim · Porsche |
| Induction type | TurbochargedManufacturer claim · Audi of America | Twin-turboManufacturer claim · Porsche |
|---|
| Redline | — | 6800Manufacturer claim · Porsche |
|---|
| Transmission type | Torque-converter automaticManufacturer claim · Audi of America | Torque-converter automaticManufacturer claim · Porsche |
|---|
| Number of gears | 8Manufacturer claim · Audi of America | 8Manufacturer claim · Porsche |
|---|