The Lexus IS XE20 (2005-2009) was offered with 4 distinct engine configurations across its trim range.
| Engine | Power | Torque | Transmission | Drive | Top speed | 0-100 km/h | Consumption | Available on |
|---|---|---|---|---|---|---|---|---|
| 5.0L Petrol | 423 hp | 505 Nm | Automatic | Rear Wheel Drive | 270 km/h | 4.8 s | 11.4 l/100km | 1 trim |
| 2.5L Petrol | 208 hp | 252 Nm | Automatic | Rear Wheel Drive | 225 km/h | 8.4 s | 9.1 l/100km | 5 trims |
| 2.5L Petrol | 208 hp | 252 Nm | Manual | Rear Wheel Drive | 230 km/h | 8.1 s | 9.8 l/100km | 5 trims |
| 2.2L Diesel | 177 hp | 400 Nm | Manual | Rear Wheel Drive | 215 km/h | 8.9 s | 6.3 l/100km | 5 trims |
Each row is a distinct mechanical configuration — engine size, power output, transmission, drivetrain and fuel type — deduplicated across equipment trims that share the same engine. Trim-only differences (interior, wheels, options) do not create a separate row.