The first dedicated hybrid model from Lexus, the 2010 HS 250h will arrive at U.S. dealerships in late August with prices set at $34,200 for the base model and $36,970 for the better equipped Premium version. In both cases buyers will have to pay an additional delivery, processing and handling fee of $875. Standard features include leather-trimmed seats, a 10-speaker, 137-watt audio system with a CD changer, 17-inch alloys and 10 airbags.

The HS 250h Premium model adds heated/ventilated front seats trimmed in semi-aniline leather, larger 18-inch alloy wheels, rain-sensing windshield and genuine wood interior trim plus a new memory system that allows individual driver settings for seat, power tilt/telescopic steering wheel, outside mirrors and air conditioning settings to be recalled automatically by individual key fobs.

The HS 250h features a 147HP 2.4-liter four-cylinder Atkinson-cycle gasoline engine and a 40HP electric motor which generate a combined output for 187HP. Power is channeled to the front wheels through a continuously variable transmission (CVT). According to Lexus, the hybrid sedan received EPA-estimated ratings of 35 mpg city and 34 mpg on the highway for a combined 35 mpg utilizing regular 87-octane gasoline.