Advice for buying a used Prius V: which year has best visibility?

I'm interested in buying a Prius V -- want to buy hybrid for environmental reasons and also like reliability of Toyotas. But I also love the visibility you get from a Subaru Forester or Outback. I haven't test-driven a Prius V yet; does anyone know which years have best visibility (i.e., the least blind spots)? I test drove a Matrix wagon and couldn't stand the big blind spots. I'm thinking of a 2012-2015 model since I can't afford a new car. I know that design changes from year to year can make a big difference with visibility, so I'm hoping to narrow down my choices by the year that has best visibility since that's important to me. Thanks for any advice!