Toyota has long been associated with reliability. Toyotas are popular cars and Corollas are one of their biggest selling models. The Corolla may not be the most exciting car out there, but it is efficient and reliable. It is equipped with a 1.8 liter four-cylinder engine that pushes 132 hp, along with a gearless CVT automatic transmission. Even though the Corolla is still similar to the past models, they have made some upgrades to the vehicle, which they do yearly, and falls on the list of the top 20 most reliable cars of 2017 for under $20,000.