There's a local b'iness that seems to specialize in offering a large set of inspected used cars to the general public, with a strong web presence at
carsense.com. When you drive the PA Turnpike west from Philly you see their place from the road, and it's quite large. But I have no experience with them. The interesting thing is that they list their inventory online, along with prices.
They include a free
carfax.com report. These are the people whose teevee ad features a dog driving a pickup into a lake to chase the ducks? I think I would get a report on any used ve-hickle.