There are a lot of smarts in the UK edited version.
Instead of fooling around with BBC America, go to FinalGear.com :: There's Fifth Gear, There's Top Gear, And Then There Is Final Gear
they post the episode like an hour after it airs on British tv
Season 18 actually ended like a month+ ago, there's a surprise in the last episode
The original UK episodes are 20+ min longer and feature their original musical scores too!