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Home›Duel›Lexus IS 350 vs Alfa Romeo Giulia

Performance comparison

Lexus IS 350 F Sport RWD vs Alfa Romeo Giulia Veloce: 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.

LexusPetrolFaster

IS 350 F Sport RWD

311 hp · 380 Nm · 1,735 kg · 2023

VS
Alfa RomeoPetrol

Giulia Veloce

280 hp · 400 Nm · 1,590 kg · 2024

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO

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.

IS 350 F Sport RWDGiulia Veloce
0–100 km/h5,75 s5,25 s+0,50 s
400 m standing start13,83 s13,56 s+0,27 s
1,000 m standing start24,69 s−0,20 s24,89 s
Top speed (electronically limited)250 km/h+10 km/h240 km/h
Power-to-weight ratio5,58 kg/hpbetter ratio5,68 kg/hp

Watch the race

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

LexusPetrolIS 350 F Sport RWD
Speed
0km/h
Timer
0,00s
Distance
0m
Alfa RomeoPetrolGiulia Veloce
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. Winner in green.

PalierIS 350 F Sport RWDGiulia Veloce
0–30 km/h1,58 s1,41 s
0–50 km/h2,63 s2,11 s
0–80 km/h4,25 s3,73 s
0–100 km/h5,75 s5,25 s
0–120 km/h7,39 s7,04 s
0–160 km/h12,01 s12,32 s
0–200 km/h19,23 s21,59 s
400 m standing start13,83 s13,56 s
1,000 m standing start24,69 s24,89 s
Top speed limited250 km/h240 km/h

Under the bonnet

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

Lexus

IS 350 F Sport RWD

5,58kg/hpratio better by 0,10 kg/hp
CharacteristicValueDetail
Power311 hpPending
Torque380 Nm
Weight1 735 kgmanufacturer kerb weight
DrivetrainPropulsion
Gearbox8-speed automatic
Alfa Romeo

Giulia Veloce

5,68kg/hpcompensated by −145 kg
CharacteristicValueDetail
Power280 hpPending
Torque400 Nm
Weight1 590 kgmanufacturer kerb weight
DrivetrainGiulia Veloce 2024
Gearbox8-speed automatic

The start: 0 to 100 km/h

Off the line, the Giulia Veloce hits 100 km/h in 5.26 s versus 5.76 s for the IS 350 F Sport RWD. At this point, the Giulia Veloce leads by 0.50 s and sits roughly 10 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Giulia Veloce is doing 135 km/h against 137 km/h for the IS 350 F Sport RWD. The gap is 0.37 s. The challenger starts to claw back ground.

At 400 metres standing start, the Giulia Veloce crosses the line in 13.56 s versus 13.83 s. The 0.27 s gap represents roughly 13 m of track — two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the situation changes. The Giulia Veloce maxes out at 240 km/h while the IS 350 F Sport RWD keeps accelerating towards 250 (i.e. 155 mph — industry threshold) km/h. At 600 metres, the gap has dropped to 0.15 s.

Around 788 metres, both vehicles are level. This is the inversion point: the IS 350 F Sport RWD overcomes its launch deficit thanks to a 10 km/h higher top speed.

At 1,000 metres, the IS 350 F Sport RWD finishes in 24.69 s versus 24.89 s. The 0.20 s delta shows an extremely tight race.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the IS 350 F Sport RWD is capped at 250 (i.e. 155 mph — industry threshold) km/h, the Giulia Veloce at 240 km/h. This isn’t a physical engine limit — it’s a manufacturer choice, usually for tyre safety or homologation reasons. Neither car reaches its true aerodynamic top speed.

With two combustion powertrains, the difference comes down to power-to-weight ratio (5.58 kg/hp vs 5.68 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.49 seconds. The 0.50 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 IS 350 F Sport RWD
Bmw 750Ld xDriveVolvo V60 T8 AWD RechargeAudi A6 Sedan TFSI quattro S tronic 270 kW
Instead of Giulia Veloce
Bmw M240iAudi A6 Sedan TDI quattro S tronic 220 kWMercedes V 300 d 4MATIC (long)

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Frequently asked questions

Sur 0–100 km/h, Giulia Veloce gagne (5,25 s vs 5,75 s).

IS 350 F Sport RWD passe de 0 à 100 km/h en 5,75 secondes (simulation calibrée).

IS 350 F Sport RWD : 311 hp, ratio 5,58 kg/hp. Giulia Veloce : 280 hp, ratio 5,68 kg/hp.

IS 350 F Sport RWD : 250 km/h. Giulia Veloce : 240 km/h.