The Rio is entry-level of Kia, subcompact car and is one of the most inexpensive compact cars in its class. Available as either a sedan or a five-door hatchback (Rio5), the Rio proves that an economy compact car doesn’t have to come standard with a bland design or boring driving characteristics. The Kia Rio is designed to be attractive and functional with a sporty, but still cute look and a spacious cabin. The Kia Rio comes with a 10-year/100,000-mile powertrain warranty and gets an estimated 32-35 mpg on the highway.