An engine that draws in air on its own without the assistance of a supercharger or turbocharger (forced induction). Natural aspiration usually produces less power than either turbocharged or supercharged engines of the same engine displacement, but generally operates with better fuel efficiency.

The greatest gift to commuters since the car pool lane, this optional, subscription-based service adds periodically updated traffic and roadway information to a vehicle’s navigation system display. On roads with coverage, this system can help the driver avoid congestion, accidents and lane closures. Data for the NavTraffic™ system is gathered from a variety of sources including police, highway patrol, roadway cameras, freeway sensors and other government services.

This high-voltage battery serves as the electricity “fuel tank” for the Hybrid Synergy Drive^® (HSD) powertrain. It stores electricity for use by Motor/Generator 1 (MG1), which starts the gasoline engine; Motor/Generator 2 (MG2), which helps power the front wheels; and the rear Motor/Generator (MGR), which drives the rear wheels of 4WD-i vehicles. The battery also supplies power to the air conditioning compressor and Electric Power Steering (EPS) system, allowing both systems to operate when the gasoline engine is not running.