Top 10 Most Affordable Cars in 2021 Published on February 18, 2021 in Top 10 by Guillaume Rivard Photo: Marc Lachapelle 7. Nissan Sentra - $19,198 Completely redesigned for 2020, the Sentra understandably returns for 2021 with no major changes—unless you’re talking about the new Nissan Sentra Cup racing series!