Skip to main content
CaralogyCaralogy
HomeBrandsRoad TripBudgetDuelGuides
Caralogy

The car comparison platform. Physics simulation, road trips, real costs.

Navigation
All brandsCar duelRunning costsMotorwayMethodology
Simulators
Motorway simulatorRunning costsPerformance duel
Brands
VolkswagenBMWMercedesToyotaTeslaAudi
FRENDEESIT
© 2026 Caralogy · All rights reserved
  1. Home
  2. /Duel
  3. /Hatchbacks
A128tivsB230iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs128ti · 230i

BMW 128ti F40 vs BMW 230i Coupe G42: 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.

compact · 2021 vs 2022 · Methodology
BMWPetrol

128ti F40

265 hp · 400 Nm · 1,445 kg · 2021

VS
BMWPetrolFaster

230i Coupe G42

245 hp · 400 Nm · 1,525 kg · 2022

Result · 0–100 km/h

ABMW 128ti F40

6.22 s

Gap0.21 sin favour of 230i Coupe
BBMW 230i Coupe G42

6.01 s

Summary · Caralogy simulation
Measure128ti F40230i Coupe G42Gap
0–100 km/h6.22 s6.01 s0.21 s · 230i Coupe G42
400 m standing start14.31 s14.21 s0.10 s · 230i Coupe G42
1,000 m standing start25.38 s25.54 s0.16 s · 128ti F40
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio5.45 kg/hp6.22 kg/hpbetter ratio · 128ti F40

Watch the race

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

BMWPetrol128ti F40
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol230i Coupe G42
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.
Stage128ti F40230i Coupe G42
0–30 km/h1.88 s1.62 s
0–50 km/h3.14 s2.70 s
0–80 km/h4.86 s4.45 s
0–100 km/h6.22 s6.01 s
0–120 km/h7.95 s7.95 s
0–160 km/h12.77 s13.37 s
0–200 km/h20.72 s22.01 s
400 m standing start14.31 s14.21 s · tight gap
1,000 m standing start25.38 s25.54 s
Top speed limited250 km/h250 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.

BMW

128ti F40

5,45kg/hpratio better by 0,77 kg/hp
CharacteristicValueDetail
Power265 hp4 cyl
Torque400 Nm
Weight1 445 kgmanufacturer kerb weight
DrivetrainTraction
GearboxEight-speed Steptronic Sport transmission
BMW

230i Coupe G42

6,22kg/hpcompensated by −80 kg
CharacteristicValueDetail
Power245 hpPending
Torque400 Nm
Weight1 525 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 230i Coupe hits 100 km/h in 6.01 s versus 6.22 s for the 128ti. At this point, the 230i Coupe leads by 0.21 s and sits roughly 9 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 230i Coupe is doing 132 km/h against 136 km/h for the 128ti. The gap is 0.24 s. The gap remains stable from the start.

At 400 metres standing start, the 230i Coupe crosses the line in 14.20 s versus 14.31 s. The 0.10 s gap represents roughly 5 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the situation changes. Past 400 metres, both rivals hit the same electronic ceiling at 250 (i.e. 155 mph - industry threshold) km/h. Neither can claw back ground through top speed - the outcome hinges on the acceleration curve between 100 and 250 (i.e. 155 mph - industry threshold) km/h.

At 1,000 metres, the 128ti finishes in 25.37 s versus 25.53 s. The 0.16 s delta shows an extremely tight race.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the 128ti and the 230i Coupe are governed to 250 (i.e. 155 mph - industry threshold) km/h. At that speed, standard-fit tyres approach their safety threshold - an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.

With two combustion powertrains, the difference comes down to power-to-weight ratio (5.45 kg/hp vs 6.22 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.10 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 128ti F40
Audi S3 SedanAudi A3 allstreetAudi A3 Sportback TFSI quattro S tronic 150 kW

Other duels you might be interested in

BMWVSAudi

128ti vs A3 allstreet

BMWVSAudi

230i Coupe vs A3 allstreet

BMWVSAudi

128ti vs A3 Sedan

BMWVSAudi

230i Coupe vs A3 Sedan

Frequently asked questions

Over 0–100 km/h, 230i Coupe G42 wins (6,01 s vs 6,22 s).

128ti F40 goes from 0 to 100 km/h in 6,22 seconds (calibrated simulation).

128ti F40: 265 hp, ratio 5,45 kg/hp. 230i Coupe G42: 245 hp, ratio 6,22 kg/hp.

128ti F40: 250 km/h. 230i Coupe G42: 250 km/h.