You can filter motorcycle by year right now. Just click the year on a model listing page to see only vehicles in that year. For example, here's the page for 2007 Kawasaki Ninja 250R. Notice that the URL for that page has a year at the end, so you can go to any year for that particular model by changing the year in the URL if you don't want to click from the model page.
That is pretty cool. How about a range of years? Can you do the same with cars?
No, we don't have ranges and I don't think that's something we'll ad. Yeah, you can do it with cars too. Here's the page for the 2010 Prius.