Kia Rio restyled, Soul refreshed, and both offer stop-start option

Although Rio and Accent share a platform, there are technical differences. Kia is the first mainstream-priced car line in the U.S. (BMW and Porsche the higher-end exceptions) to offer an idle stop-start system on a 12-V car, making it available as a $400 option on the Rio ordered with a “convenience package.”