Lexus RX450H, the unit listed, falls under the third generation which was produced between 2008 and 2015 before the 4th gen began production same year. It has an updated transmission that can lock up its torque converter from 2nd through 6th gears to improve fuel economy. The drag coefficient was decreased, exterior dimensions increased with cargo room getting an increment as well. Smart Access, keyless entry and start system, and UV reducing exterior glass were some of the features made standard. Safety was improved with twin chamber front passenger airbags, side torso airbags for the front row, side curtain airbags for front and rear rows, knee airbags for front row, and active headrests, to protect the passengers from whiplash injuries used to protect the passenger. Hill Assist control that prevents the car from rolling back on a steep incline is standard.