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ABoxsterPetrolvsB218dDiesel
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  • SpecsBoxster · 218d

Porsche Boxster Spyder vs BMW 218d Convertible F22: which is truly faster?

Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.

sports car · 2016 vs 2018 · Methodology
PorschePetrolFaster

Boxster Spyder

375 hp · 420 Nm · 1,315 kg · 2016

VS
BMWDiesel

218d Convertible F22

150 hp · 320 Nm · 1,565 kg · 2018

Result · 0–100 km/h

APorsche Boxster Spyder

4.58 s

Gap4.53 sin favour of Boxster Spyder
BBMW 218d Convertible F22

9.12 s

Summary · Caralogy simulation
MeasureBoxster Spyder218d Convertible F22Gap
0–100 km/h4.58 s9.12 s4.53 s · Boxster Spyder
400 m standing start12.41 s16.65 s4.24 s · Boxster Spyder
1,000 m standing start22.16 s30.48 s8.32 s · Boxster Spyder
Top speed (electronically limited)288 km/h208 km/h80 km/h · Boxster Spyder
Power-to-weight ratio3.51 kg/hp10.43 kg/hpbetter ratio · Boxster Spyder

Watch the race

Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.

PorschePetrolBoxster Spyder
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel218d Convertible F22
Speed
0km/h
Timer
0,00s
Distance
0m
100 m
200 m
300 m
400 m
500 m
600 m
700 m
800 m
900 m
1000 m
0m → 1000m
Gap0m

Stage-by-stage comparison

Simulated performance at each stage. Best value in bold.
StageBoxster Spyder218d Convertible F22
0–30 km/h1.26 s1.81 s
0–50 km/h2.11 s3.17 s
0–80 km/h3.65 s6.35 s
0–100 km/h4.58 s9.12 s
0–120 km/h5.62 s12.95 s
0–160 km/h8.74 s24.66 s
0–200 km/h13.32 s57.98 s
400 m standing start12.41 s16.65 s
1,000 m standing start22.16 s30.48 s
Top speed288 km/h208 km/h

Parameters and assumptions

Simulation

Start
Standing, straight line
Surface
Dry asphalt, 23°C
Wind
None
Driver
1 person, 75 kg

Calibration

Splits
0–100, 0–200 manufacturer
Power curve
Real measurement (Caralogy)
VMax
Manufacturer limited
Transmission
Losses integrated in model

Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Porsche

Boxster Spyder

3,51kg/hpratio better by 6,93 kg/hp
CharacteristicValueDetail
Power375 hpB6
Torque420 Nm
Weight1 315 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxMANUAL
BMW

218d Convertible F22

10,43kg/hpcompensated by −250 kg
CharacteristicValueDetail
Power150 hp4 cyl
Torque320 Nm
Weight1 565 kgmanufacturer kerb weight
Drivetrain-
Gearbox6-speed manual (8-speed Steptronic)

The start: 0 to 100 km/h

Off the line, the Boxster Spyder hits 100 km/h in 4.59 s versus 9.12 s for the 218d Convertible. At this point, the Boxster Spyder leads by 4.53 s and sits roughly 21 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Boxster Spyder is doing 154 km/h against 109 km/h for the 218d Convertible. The gap is 2.51 s. The challenger starts to claw back ground.

At 400 metres standing start, the Boxster Spyder crosses the line in 12.41 s versus 16.65 s. The 4.24 s gap represents roughly 149 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Boxster Spyder continues to build its lead. At 600 metres, it runs at 216 km/h versus 152 km/h. At 1,000 metres, the Boxster Spyder finishes in 22.15 s versus 30.48 s, with a 8.33 s lead.

What the numbers don’t tell you

Electronically capped at 208 km/h, the 218d Convertible never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor - it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

With two combustion powertrains, the difference comes down to power-to-weight ratio (3.51 kg/hp vs 10.43 kg/hp) and transmission (Manual vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 15.20 seconds. The 4.53 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

PorscheVSBMW

Boxster Spyder vs Z4 M40i

BMWVSAudi

218d Convertible vs A3 Sedan

PorscheVSBMW

Boxster Spyder vs Z4 M40i

BMWVSAudi

218d Convertible vs A3 Sportback

Frequently asked questions

Over 0–100 km/h, Boxster Spyder wins (4,58 s vs 9,12 s).

Boxster Spyder goes from 0 to 100 km/h in 4,58 seconds (calibrated simulation).

Boxster Spyder: 375 hp, ratio 3,51 kg/hp. 218d Convertible F22: 150 hp, ratio 10,43 kg/hp.

Boxster Spyder: 288 km/h. 218d Convertible F22: 208 km/h.