Interesting. Must be in soft-launch - I get "Zip code not in the supported region." This won't be a direct Craigslist competitor as it seems to be aimed at dealer inventories.
Yep, they made this mistake with flight search also. Let everyone know about a service with crappy data, then everyone thinks it is crappy and never go back to it. Brilliant, from the minds of geniuses. It worked for Gmail because users didn't need data to begin with, but it doesn't work for services that require a lot of data to start with to be viable. And even if you have data, it better be good; ask Apple about their maps.