Cool.
A little feedback:
When you roll over the graph bars, it tells you how many vehicles on AutoTrader are in that price bracket (3 between this price an that price). You should be able to click on the bars, and it takes you to the three vehicle ads it's referencing. It would help in being able to see the exact cars that are offered at that price point, and how they differ from my own. That way we'd be able to see why certain cars are priced more than others (more options, lower mileage, better condition, etc.)