CarGurus vs Carfax - Good and Great _or_ Great and Good?

[GuyCampbell]

Makes sense. I've never seen one that allows you to adjust by miles radius. That would be helpful for the classifieds to disclose as well. That is my guess why they all have different answers. Nobody is saying what the size of the market is that they are comparing the vehicle to. It would make more sense if they each said "it is a fair deal within 200 miles out of 256 similar vehicles"

It would really improve confidence in the valuation guides.