Calculated from peak power and curb weight — figures quoted against a different weight basis (e.g. dry or DIN) will differ.
532.6 hp/t✓ BestCalculated
349.4 hp/tCalculated
Lateral accelerationSkidpad radius and surface affect results.
—
1.18 gIndependent test · MotorTrend
Acceleration
0–60 mphLower is betterRollout (1ft) handling differs between testers and manufacturers.
2.70 s✓ TieManufacturer claim · McLaren
2.80 s✓ TieIndependent test · MotorTrend
0–100 km/hLower is better
2.80 s✓ BestManufacturer claim · McLaren
3.20 sManufacturer claim · Porsche
0–100 mph
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6.60 sIndependent test · Car and Driver
0–200 km/hLower is better
7.2 s✓ BestManufacturer claim · McLaren
10.6 sManufacturer claim · Porsche
Quarter-mile elapsed time
—
10.90 sIndependent test · MotorTrend
Quarter-mile trap speed
—
Braking
100–0 km/h braking distance
98.0 ftManufacturer claim · McLaren
—
60–0 mph braking distance
—
92.0 ftIndependent test · MotorTrend
70–0 mph braking distanceLower is better
136.0 ftIndependent test · Car and Driver
133.0 ft✓ BestIndependent test · Car and Driver
100–0 mph braking distanceLower is better
264.0 ftIndependent test · Car and Driver
251.0 ft✓ BestIndependent test · Car and Driver
200–0 km/h braking distance
371.0 ftManufacturer claim · McLaren
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Engine & Powertrain
Peak powerHigher is better
740 hp✓ BestManufacturer claim · McLaren
518 hpManufacturer claim · Porsche
Peak torqueHigher is better
590 lb-ft✓ BestManufacturer claim · McLaren
343 lb-ftManufacturer claim · Porsche
Engine displacement
4000.0 ccManufacturer claim · McLaren
4000.0 ccManufacturer claim · Porsche
Cylinder count
8Manufacturer claim · McLaren
6Manufacturer claim · Porsche
Engine layout
V8Manufacturer claim · McLaren
Flat-6Manufacturer claim · Porsche
Engine placement
MidManufacturer claim · McLaren
Rear
Dimensions
Length
—
180 inManufacturer claim · Porsche
Width
—
75 inManufacturer claim · Porsche
Height
—
52 inManufacturer claim · Porsche
Wheelbase
—
97 inManufacturer claim · Porsche
Weight
Curb weightLower is better
3062 lb✓ BestManufacturer claim · McLaren
3268 lbManufacturer claim · Porsche
Fuel Economy
Fuel economy (combined)Higher is betterLower L/100km is better; higher mpg is better — direction is on the canonical L/100km.
19.3 mpg✓ BestManufacturer claim · McLaren
16.0 mpgHomologation · US EPA
Fuel economy (city)Lower L/100km is better; higher mpg is better — direction is on the canonical L/100km.
—
14.0 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
19.0 galManufacturer claim · McLaren
16.9 galManufacturer claim · Porsche
Estimated range (combined)Higher is betterEstimated from tank capacity and quoted combined economy — not an instrumented range.
367 mi✓ BestCalculated
271 miCalculated
Practicality
Cargo volume
13 ft³Manufacturer claim · McLaren
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Seats
—
2Manufacturer claim · Porsche
Pricing
Base price (as tested market)Demo prices only; not live FX.
$365,100Independent test · Car and Driver
$241,300Independent test · CarBuzz
Aerodynamics
Drag coefficient (Cd)
—
0.39 :1Manufacturer claim · Porsche
Tires & Wheels
Front tire size
—
275/35 ZR20Manufacturer claim · Porsche
Rear tire size
—
335/30 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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