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Best Used Sedans Under $20k for 2025

The best used sedans under $20k based on a data-driven analysis of each vehicle's reliability, resale value and safety.

Many lists ranking used sedans under $20s may already exist, but those depend mostly on subjective editorial criteria. iSeeCars' Best Used Sedans Under $20k are ranked using a data-driven and objective methodology. By applying data science to over 330 million vehicles, iSeeCars analyzes each car to understand its reliability and how long-lasting it is, its safety, and how well it holds its value over time. Each used sedans under $20 is compared to others within its own category, and the best one in a given category is the model with the best ratings across these three key areas, summarized by the iSeeCars Quality Score. Here are the top models in each used sedans under $20 category:

The best used small and compact car under $20k is the 2018 Honda Civic (coupe) (9.4 quality rating), with the 2018 Mazda Mazda6 being the best used midsize car under $20k (8.8 quality rating). The 2018 Nissan Maxima ranks #1 for the best used large cars under $20k (8.6 quality rating).

The best used hybrid car under $20k is the 2019 Hyundai SONATA Hybrid (8.5 quality rating), with the 2019 Ford Fusion Energi being the best used plug-in hybrid car under $20k (PHEV) (8.1 quality rating). The 2021 Chevrolet Bolt EV ranks #1 for the best used electric cars under $20k (8.0 quality rating).

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How We Rank These Cars

iSeeCars Best Used Cars Under $20k Rankings are calculated based on the latest research by our data science team and the National Highway Traffic Safety Administration (NHTSA).

We analyze data from over 12 million new and used vehicles in our Longest-Lasting Cars and 5-Year Depreciation Studies, combined with the NHTSA's Safety Ratings to give you an unbiased guide to the best vehicles in each segment.

After being evaluated, vehicles with the highest average scores earn a spot in the iSeeCars Best Car Rankings. (No final score is given to vehicles missing a score in any of the categories, but scores for other categories are still shown.)

Vehicles are scored in three categories:

Reliability

The reliability score represents an analysis of iSeeCars' proprietary research on the longest-lasting vehicles.

Value Retention

The value retention score is based on our data science team's statistical analysis and prediction of 5-year depreciation from MSRP to determine which cars hold their value best, using US Bureau of Labor Statistics data to adjust for inflation.

Safety

The safety score is calculated based on the last five years of crash test ratings from the National Highway Traffic Safety Administration (NHTSA) and incorporates the latest Top Safety Pick information from the Insurance Institute for Highway Safety (IIHS).

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