The least we can say about the new Kia Optima is that it quickly makes us forget the Magentis it replaces! The Optima is available in three trims (LX, EX and SX). The first two come with a four-cylinder 2.4-liter with 200 horsepower while the sportier SX trim has a four-cylinder 2.0-liter turbocharged engine that develops 274 horsepower. Manual and six-speed automatic transmissions are available.