The 2006 Scion xB has 103 horsepower (SAE net) from its 1.5-liter four-cylinder engine, with about 100 lb-ft of torque. This figure applies to United States‑spec models from that year.
To understand what that means for driving, note that the xB’s power comes from Toyota’s 2NZ-FE 1.5-liter engine, paired with either a five-speed manual or a four-speed automatic transmission. Horsepower is the peak power the engine can deliver at high RPM, while torque describes the twist that helps with acceleration from lower speeds.
Engine and power specifications
The following specifications summarize the xB's powertrain for the 2006 model year.
- Engine: 1.5-liter inline-4 (Toyota 2NZ-FE) with dual overhead cams
- Displacement: 1497 cc
- Horsepower: 103 hp (SAE net) at 6,000 rpm
- Torque: approximately 100 lb-ft (135 Nm) at around 4,000 rpm
- Drivetrain: Front-wheel drive
- Transmissions: 5-speed manual or 4-speed automatic
These values reflect the North American‑spec configuration and can vary slightly by market or minor year refinements. In everyday driving, the xB offers practical performance for urban use and light highway cruising given its compact size and weight.
Performance context
While not a high‑performance vehicle, the xB's horsepower, combined with a light body and sensible gearing, yields adequate acceleration for daily driving and merging on highways typical of its era.
Summary
For the 2006 Scion xB, the peak horsepower is 103 hp (SAE net) from a 1.5-liter inline-4, with about 100 lb-ft of torque. Power is available through either a five-speed manual or a four-speed automatic transmission, making it a practical, city-friendly hatchback of its time.


