How fast IS Lexus IS300H?
The Lexus IS300h’s speed figures show a focus on balanced performance rather than outright ferocity. In brief, expect a top speed around 125 mph and 0–60 mph in roughly 8.5–9 seconds, depending on year, market, and tyres.
What you’re asking about—speed—depends on the IS300h’s hybrid system, which combines a 2.5-liter petrol engine with an electric motor to deliver a combined output around the low 200s horsepower. Results can vary by model year and trim, and real-world acceleration can differ with driving conditions, battery state of charge, and wheel/tyre choices.
Performance numbers at a glance
Below are the official-style figures and typical test results reported for markets where the IS300h was sold. This list helps summarize how fast the car is in standard conditions.
- Combined system power: approximately 223 horsepower (about 164 kW)
- 0–60 mph (0–100 km/h): typically around 8.5–9.0 seconds, with some variation by year and equipment
- Top speed: electronically limited to about 125 mph (roughly 210 km/h)
- Drivetrain/propulsion notes: hybrid system uses a 2.5-liter Atkinson-cycle petrol engine paired with an electric motor and a CVT-style transmission for smooth, efficient acceleration
In everyday driving, the IS300h delivers steady, linear power delivery from electric assistance, making merges and highway passes comfortable rather than dramatic. It prioritizes refinement and efficiency over outright speed.
Real-world impressions
Drivers often report that the IS300h feels strongest in its mid-range, where the electric motor adds torque for confident passing and overtaking. The hybrid setup shines when cruising or at steady highway speeds, offering a quiet ride with decent acceleration for a luxury mid-size sedan.
Keep in mind that tyres, weather, and payload can shift test results by a few tenths of a second, and older model years may show slight variations in the reported figures.
Summary
The Lexus IS300h is designed for balanced performance rather than sizzling speed. It typically reaches 0–60 mph in the upper 8s to around 9 seconds and tops out near 125 mph, delivering smooth, efficient acceleration with strong low-to-mid-range torque from its hybrid powertrain. For buyers prioritizing comfort, refinement, and economy in a mid-size luxury sedan, the IS300h offers a compelling package, even if it isn’t a traditional performance car.
