First of all... if you are reading this, Ransom, I will never doubt you again.
Despite what Ransom said, I test-drove a 2015 Focus SE EcoBoost 6MT today. Everything about the powertrain is horrible in that car. Maybe the 1.0 is enough in a Fiesta (too small for me) but it's just not enough in the heavier Focus.
On top of that, the interior is horrible. To call it "rental-spec" would be a compliment. The 1987 Hyundai Excel had a better interior. Therefore, I saw no reason to try out the 2.0 NA 5MT.
Yesterday, I drove a used Prius. They didn't have a used one that I wanted, but they all drive the same anyhow. It's not as bad as everyone makes it out to be, honestly. The interior is Corolla-spec, but a Corolla is a decent place to be these days. Yes, you can clearly tell where Toyota cut corners (and weight) but it's a decent enough place to be.
The one I drove was a 2012 Prius 5, and it had the leather (do. not. want.) and the 17" wheels. Maybe the 17" wheels help the car a lot, because this one seemed to ride and handle a lot better than the Prius I drove a while ago on 15s. I can get a base model and buy my own 17s.
As long as I was at the Toyota/Scion dealer, I test-drove a 2016 Scion iM. While I loved my xB1, I'm not a huge fanboi, so don't think I'm being biased here.
The iM is a very nice car. Sure, it's largely a Corolla underneath (although they obviously tweaked the suspension for better handling and less ride comfort), but they did a fabulously good job with the interior. I don't think I'm being out of line to say it is Lexus-grade. Everything you see and touch feels way too upscale for a $20k car.
===== So the dilemma is between a $17k CPO Prius vs. a $20k new Scion. I'm not even going to ask for advice, because this becomes a personal choice at this point. My only wish at this moment is that a CPO Scion iM was an option here!