I'm definitely mashin' off of Jeep.com's locator -- what I found painful when I was looking was the need to drill down into each dealer with matching vehicles. The value of the mashup is it does all the iteration/drilldown for you and produces a unified result in a single step. It also embeds driving directions in the result. Let me know if there's other helpful stuff I could hack on. Still looking for approach for integrating in the sticker detail along with the individual vehicles...

 

Also looking for a straightforward way to embed an alternate distance in the query too. Anybody figure that out yet? When you drill down into the Advanced Search and specify a different distance, they embed the distance in a hideous aggregate stream that's non-trivial to reproduce... You can see it if you do an advanced search, then view source and search for name="st". Yikes...

 

It's messy, but it appears to have substance. The value is delimited by pipe characters and the distance is the 11th from the last.

 

I used this mashup when looking for my Jeep. Adding distance to be configurable (or a drop down box of predefined distances: 50, 100, 200, etc) would have been awesome!