Specification comparison of 2023 Bugatti Chiron Pur Sport, 2025 BMW M4 Competition xDrive Coupe. The best value in each comparable row is labelled “Best”.
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.
741.4 hp/t✓ BestCalculated
284.0 hp/tCalculated
Lateral accelerationHigher is betterSkidpad radius and surface affect results.
1.60 g✓ BestManufacturer claim · Bugatti
1.02 gIndependent test · Car and Driver
Acceleration
0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers.
2.30 s✓ BestIndependent test · EncyCARpedia
2.80 sIndependent test · Car and Driver
0–100 km/hLower is better
2.30 s✓ BestManufacturer claim · Bugatti
3.50 sManufacturer claim · BMW
0–100 mph
—
6.90 sIndependent test · Car and Driver
0–200 km/hLower is better
5.5 s✓ BestManufacturer claim · Bugatti
11.8 sIndependent test · auto motor und sport
Quarter-mile elapsed time
—
11.00 sIndependent test · Car and Driver
Quarter-mile trap speed
Braking
70–0 mph braking distance
—
150.0 ftIndependent test · Car and Driver
100–0 mph braking distance
—
302.0 ftIndependent test · Car and Driver
Engine & Powertrain
Peak powerHigher is better
1479 hp✓ BestManufacturer claim · Bugatti
503 hpIndependent test · Car and Driver
Peak torqueHigher is better
1180 lb-ft✓ BestManufacturer claim · Bugatti
479 lb-ftIndependent test · Car and Driver
Engine displacement
7993.0 ccManufacturer claim · Bugatti
2993.0 ccIndependent test · Wikipedia
Cylinder count
16Manufacturer claim · Bugatti
6Homologation · US EPA
Engine layout
W16Manufacturer claim · Bugatti
Inline-6Independent test · Wikipedia
Engine placement
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Dimensions
Length
183 inManufacturer claim · Bugatti
189 inIndependent test · Wikipedia
Width
85 inManufacturer claim · Bugatti
74 inIndependent test · Wikipedia
Height
48 inManufacturer claim · Bugatti
55 inIndependent test · Wikipedia
Wheelbase
107 inManufacturer claim · Bugatti
112 inIndependent test · Wikipedia
Weight
Curb weightLower is better
4398 lbManufacturer claim · Bugatti
3904 lb✓ BestIndependent test · Car and Driver
Fuel Economy
Fuel economy (combined)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.
9.0 mpgHomologation · US EPA
18.0 mpg✓ BestHomologation · US EPA
Fuel economy (city)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.
8.0 mpgHomologation · US EPA
16.0 mpg✓ BestHomologation · US EPA
Fuel economy (highway)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.
11.0 mpgHomologation · US EPA
23.0 mpg✓ BestHomologation · US EPA
Fuel tank capacity
26.4 galManufacturer claim · Bugatti
—
Estimated range (combined)Estimated from tank capacity and quoted combined economy — not an instrumented range.
238 mi
Practicality
Seats
—
4Independent test · Wikipedia
Pricing
Base price (as tested market)Demo prices only; not live FX.
—
$89,000Homologation · US EPA
Tires & Wheels
Front tire size
Michelin Sport Cup 2 R 285/30 R20Manufacturer claim · Bugatti
275/35ZR-19Independent test · Car and Driver
Rear tire size
Michelin Sport Cup 2 R 355/25 R21Manufacturer claim · Bugatti
295/30ZR-20Independent test · Car and Driver
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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