For 2010, all Accents have a revised version of the 1.6-liter engine that's slightly more fuel efficient than it was previously. Additionally, the Accent gets a new trim level -- the Accent Blue. Thanks to revised gear ratios, the Blue is the most fuel-efficient Accent available; it's also the least expensive choice in the Accent's lineup.
Unfortunately, the Blue isn't available with antilock brakes (ABS); we tested an Accent GS last year that was missing this safety feature, and stopping distances were quite long. The Accent GS is now available with ABS. We'd recommend that buyers avoid the Blue and instead spend a little extra to get the GS with the ABS option.