The ES 300 featured one powertrain option, a 3.0 liter V6 capable of 150 kW (200 hp) and 290 N·m (214 lb·ft) of torque and a four-speed automatic - although a 147 kW (197 hp), 2.5 liter 2MZ-FE V6.
In 1997 for the 1998 model year, the ES received a few updates, mainly consisting of a revised supplemental restraint system (next generation), standard front row side-torso airbags, and force limiting seat belt pretensioners that were designed to tighten the front seat passengers into their seats upon impact
The ES 300 received a mild facelift in 1999 for the 2000 model year that consisted of new, clear tail lights and turn signals, a revised front end with a new grill, headlights, and lower bumper with clear fog lights and larger alloy wheels. Inside, the interior received an electrochromatic mirror, more wood trim and slight revisions to the audio system. Xenon High-Intensity Discharge headlights with auto-leveling were now optional
Information provided by: http://en.wikipedia.org/wiki/Lexus_ES