Top 10 Top 10 Most Affordable Cars in 2021 by Guillaume Rivard February 18, 2021 Photo: Kia4. Kia Rio - $17,295 The freshly updated Kia Rio won The Car Guide’s 2021 Best Buy award in the sub-compact car segment. It’s now available as a five-door hatchback only. « PreviousNext » Share on Facebook Share: