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  • SpecsBoxster · TT 45

Porsche Boxster vs Audi TT 45 TFSI: 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 · 2012 vs 2019 · Methodology
PorschePetrolFaster

Boxster

259 hp · 290 Nm · 1,335 kg · 2012

VS
AudiPetrol

TT 45 TFSI

245 hp · 370 Nm · 1,330 kg · 2019

Result · 0–100 km/h

APorsche Boxster

5.60 s

Gap0.21 sin favour of Boxster
BAudi TT 45 TFSI

5.81 s

Summary · Caralogy simulation
MeasureBoxsterTT 45 TFSIGap
0–100 km/h5.60 s5.81 s0.21 s · Boxster
400 m standing start13.86 s14.07 s0.21 s · Boxster
1,000 m standing start25.21 s25.49 s0.28 s · Boxster
Top speed (electronically limited)252 km/h251 km/h1 km/h · Boxster
Power-to-weight ratio5.15 kg/hp5.43 kg/hpbetter ratio · Boxster

Watch the race

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

PorschePetrolBoxster
Speed
0km/h
Timer
0,00s
Distance
0m
AudiPetrolTT 45 TFSI
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.
StageBoxsterTT 45 TFSI
0–30 km/h1.42 s · tight gap1.56 s
0–50 km/h2.35 s2.60 s
0–80 km/h4.14 s4.29 s
0–100 km/h5.60 s5.81 s
0–120 km/h7.55 s7.75 s
0–160 km/h12.82 s13.21 s
0–200 km/h21.85 s22.61 s
400 m standing start13.86 s14.07 s
1,000 m standing start25.21 s25.49 s
Top speed252 km/h251 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

5,15kg/hpratio better by 0,27 kg/hp
CharacteristicValueDetail
Power259 hpEngine block and cylinder heads formed in aluminum
Torque290 Nm
Weight1 335 kgmanufacturer kerb weight
DrivetrainPropulsion
Gearbox6 speed standard
Audi

TT 45 TFSI

5,43kg/hp
CharacteristicValueDetail
Power245 hpPending
Torque370 Nm
Weight1 330 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox7-speed S tronic

The start: 0 to 100 km/h

Off the line, the Boxster hits 100 km/h in 5.60 s versus 5.81 s for the TT 45 TFSI. At this point, the Boxster leads by 0.21 s and sits roughly 5 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Boxster is doing 134 km/h against 133 km/h for the TT 45 TFSI. The gap is 0.18 s. The gap remains stable from the start.

At 400 metres standing start, the Boxster crosses the line in 13.86 s versus 14.06 s. The 0.20 s gap represents roughly 9 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Boxster continues to build its lead. At 600 metres, it runs at 185 km/h versus 184 km/h. At 1,000 metres, the Boxster finishes in 25.21 s versus 25.49 s, with a 0.28 s lead. Both vehicles have similar top speeds (252 vs 251 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

Electronically capped at 262 km/h, the Boxster 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 (5.15 kg/hp vs 5.43 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.89 seconds. The 0.21 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Compare with other alternatives

Swap one of the two models to explore an equivalent duel in the same segment.

Instead of TT 45 TFSI
Jaguar F-TYPE P300

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BMWVSAudi

Z4 sDrive30i vs TT 45 TFSI

Frequently asked questions

Over 0–100 km/h, Boxster wins (5,60 s vs 5,81 s).

Boxster goes from 0 to 100 km/h in 5,60 seconds (calibrated simulation).

Boxster: 259 hp, ratio 5,15 kg/hp. TT 45 TFSI: 245 hp, ratio 5,43 kg/hp.

Boxster: 252 km/h. TT 45 TFSI: 251 km/h.