Sounds like you know the option you want, but that doesn't make it a good option.
You have debt to pay down, no idea what your savings are, but you really don't need MORE debt on top of it, especially for an expensive depreciating asset that will only cost you more money down the road. Doesn't make sense financially no matter how much you try to justify it.
The automobile market runs on a false sense of "need" and irrational fear of auto breakdowns, which is what you're feeling right now. It's not surprising that you feel it, because you've probably internalized a lot of marketing. But the fact is, your vehicle isn't that old and, if it's maintained, should have many many more years left. If it does break down, fixing it will cost you a hell of a lot less than $25K. It's extremely unlikely to break down on one of your vacation trips, and if it does there are other options for getting yourself out of that pickle (fix it, rent a vehicle, etc.) than you're assuming. Trust me, I've taken a trip down to Florida in a MUCH older and crappier vehicle and it got us there and back just fine.
Selling the Ody right now because it'll depreciate also doesn't make sense - the majority of its depreciation has already happened. Past 120K miles, depreciation slows down a lot, in my experience. And your alternative is plunking 25K (plus interest) down on a vehicle that is guaranteed to depreciate several thousand dollars once you drive it off the lot. Doesn't make sense.
Throwing good money (that you don't have, and can't really afford to borrow) after a depreciating asset when you already have one that meets all its functions is never a "good deal".