What's the advantage of CarWoo over Edmunds? As a comparison I looked at the 2014 version of my current car:
http://carwoo.com/new-car-prices/T85363842-2014-mazda-mx-5-m...
Versus
http://www.edmunds.com/mazda/mx-5-miata/2014/?style=20048458...
Edmunds tells me what invoice is, what MSRP is, and what most people end up paying for each of the trim levels. I don't see much information on CarWoo, other than for the base model.