Trixie's War on Wheels continues. Good thing Sweete Belle just recharged her hydrogen fuel cells!
Edit- Is it weird that I think Rarity and Trixie could potentially get along pretty well? They've both traveled quite a bit and have kind-of haughty dispositions. It's possible they'd be pretty good friends and have a lot to discuss...if Trixie could resist doing terrible things to Rarity's style for five minutes.
It could also just be wishful thinking since they're my favorite tiny pretty horses.