2010 Kia Optima

Price Range: $18,690 - $23,490

With a starting price well below $20,000, the 4-cylinder engine's 22 mpg city, 32 mpg highway is like icing on the value cake. The V6 engine costs a bit more and has a bit more in the way of performance, but for the money, the 4-cylinder delivers on all fronts. Not to mention that 10-year/100,000-mile warranty.