brother, check most compalint toyota cars, and you will find 2007 and 2010 the most, where 2007 has the most problems in battery, that is all i can say from the internet informaiton, practically i have some 2007 stuck on road, hood open, driver sitting on pavement,
but not driven , i bought aqua 2015 then,
but safety is to go for minimum 2011 prius version....
you can search a thread (might be mine) where some body posted that link to a website....