Just because you are concerned about a used purchase I have a off topic question . Do you really need a Hybrid ? I ask because there are a lot of new small vehicles that get really good MPG for not much more than a used 2015 Prius sells for. Example , our 2018 Ford Fiesta never gets less then 30 mpg and on a 1500 mile trip we averaged 38 mpg. New has warranty and lower loan rates.
Of course my opinion is biased because I would never buy a used Hybrid or a used All Wheel Drive vehicle.