For what you are saying you seem to want a rational and logic purchase, with your brain instead of with your heart. Well, being a passionated petrolhead myself, I can not help you with it, but i can share with you how I see it.
For almost 20k there are hundreds of awesome second cars that I would buy. Think that you are gonna spend a good part of your live in that car, so it better is a nice place to be, and if it makes you smile, then you are doing it right. If economy is not an issue, just go for whatever makes you happier, you only live once.
PS: The advice of someone who drives a turbo 4wd rally car as a daily driver.