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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 | BMW2025 BMW X6 M Competition | Audi2027 Audi RS Q8 performance |
|---|---|---|
| Performance | ||
| Top speedHigher is better | 177 mphManufacturer claim · BMW | 190 mphBestManufacturer claim · Audi of America |
| 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. | 249.4 hp/tCalculated | 254.5 hp/tBestCalculated |
| Acceleration | ||
| 0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers. | 3.70 sManufacturer claim · BMW | 3.40 sBestManufacturer claim · Audi of America |
| 0–100 km/hLower is better | 3.90 sManufacturer claim · BMW | 3.60 sBestManufacturer claim · Audi of America |
| 0–200 km/hLower is better | 13.6 sManufacturer claim · BMW | 12.9 sBestIndependent test · auto motor und sport |
| 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 | 617 hpManufacturer claim · BMW | 631 hpBestManufacturer claim · Audi of America |
| Peak torqueHigher is better | 553 lb-ftManufacturer claim · BMW | 627 lb-ftBestManufacturer claim · Audi of America |
| Engine displacement | 4395.0 ccManufacturer claim · BMW | 4000.0 ccManufacturer claim · Audi of America |
| Cylinder count | 8Manufacturer claim · BMW | 8Manufacturer claim · Audi of America |
| Engine layout | V8Manufacturer claim · BMW | V8Manufacturer claim · Audi of America |
| Engine placement | FrontManufacturer claim · BMW | |
| Dimensions | ||
| Length | 195 inManufacturer claim · BMW | — |
| Width | 80 inManufacturer claim · BMW | — |
| Height | 67 inManufacturer claim · BMW | — |
| Wheelbase | 117 inManufacturer claim · BMW | — |
| Ground clearance | 8 inManufacturer claim · BMW | — |
| Weight | ||
| Curb weightLower is better | 5454 lbBestManufacturer claim · BMW | 5467 lbManufacturer claim · Audi of America |
| Fuel Economy | ||
| Fuel economy (combined)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 15.0 mpgHomologation · US EPA | — |
| Fuel economy (city)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 13.0 mpgHomologation · US EPA | — |
| Fuel economy (highway)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km. | 18.0 mpgHomologation · US EPA | — |
| Fuel tank capacity | 21.9 galManufacturer claim · BMW | — |
| Estimated range (combined)Estimated from tank capacity and quoted combined economy — not an instrumented range. | 329 miCalculated | — |
| Estimated range (highway)Estimated from tank capacity and quoted highway economy — not an instrumented range. | 394 mi | |
| Practicality | ||
| Cargo volume | 27 ft³Manufacturer claim · BMW | — |
| Seats | 5Manufacturer claim · BMW | — |
| Pricing | ||
| Base price (as tested market)Demo prices only; not live FX. | $132,100Homologation · US EPA | $139,700Manufacturer claim · Audi of America |
| Tires & Wheels | ||
| Front tire size | 295/35ZR21 (107Y)Manufacturer claim · BMW | — |
| Rear tire size | 315/30ZR22 (107Y)Manufacturer 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.
Community index
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 · BMW | TurbochargedManufacturer claim · Audi of America |
|---|
| Transmission type | Torque-converter automaticManufacturer claim · BMW | Torque-converter automaticManufacturer claim · Audi of America |
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| Number of gears | 8Manufacturer claim · BMW | 8Manufacturer claim · Audi of America |
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| — |
| Estimated range (city)Estimated from tank capacity and quoted city economy — not an instrumented range. | 285 miCalculated | — |
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