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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 GTS |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 190 mphBestManufacturer claim · Audi of America | 171 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/tBestCalculated | 225.1 hp/tCalculated |
| Lateral accelerationSkidpad radius and surface affect results. | — | 1.01 gIndependent test · Car and Driver |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 3.40 sBestManufacturer claim · Audi of America | 4.20 sManufacturer claim · Porsche |
| 0–100 km/hLower is better | 3.60 sBestManufacturer claim · Audi of America | 4.40 sManufacturer claim · Porsche |
| 0–100 mph | — | 9.20 sIndependent test · Car and Driver |
| 0–200 km/hLower is better | 12.9 sBestIndependent test · auto motor und sport | 16.7 sManufacturer claim · Porsche |
| Quarter-mile elapsed time | — | 12.80 sManufacturer claim · Porsche |
| Braking | ||
| 70–0 mph braking distanceLower is better | 142.0 ftBestIndependent test · Car and Driver | 144.0 ftIndependent test · Car and Driver |
| 100–0 mph braking distanceLower is better | 283.0 ftBestIndependent test · Car and Driver | 294.0 ftIndependent test · Car and Driver |
| Engine & Powertrain | ||
| Peak powerHigher is better | 631 hpBestManufacturer claim · Audi of America | 493 hpManufacturer claim · Porsche |
| Peak torqueHigher is better | 627 lb-ftBestManufacturer claim · Audi of America | 486 lb-ftManufacturer 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 | — | 78 inManufacturer claim · Porsche |
| Height | — | 66 inManufacturer claim · Porsche |
| Wheelbase | — | 114 inManufacturer claim · Porsche |
| Weight | ||
| Curb weightLower is better | 5467 lbManufacturer claim · Audi of America | 4828 lbBestManufacturer claim · Porsche |
| Fuel Economy | ||
| Fuel economy (combined)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 18.0 mpgHomologation · US EPA |
| Fuel economy (city)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 15.0 mpgHomologation · US EPA |
| Fuel economy (highway)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | — | 22.0 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. | — | 427 miCalculated |
| Estimated range (highway)Estimated from tank capacity and quoted highway economy — not an instrumented range. | — | |
| Practicality | ||
| Seats | — | 5Manufacturer claim · Porsche |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $139,700Manufacturer claim · Audi of America | $124,900Manufacturer claim · Porsche |
| Aerodynamics | ||
| Drag coefficient (Cd) | — | 0.34 :1Manufacturer claim · Porsche |
| Tires & Wheels | ||
| Front tire size | — | 285/45 ZR21Manufacturer claim · Porsche |
| Rear tire size | — | 315/40 ZR21Manufacturer 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 | 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 |
|---|
| 521 miCalculated |
| Estimated range (city)Estimated from tank capacity and quoted city economy — not an instrumented range. | — | 356 miCalculated |
|---|