I never hated the Škoda Superb, nor any of the large saloons, but I just thought of them as boring cars. I always liked small and nimble cars, or cars that were otherwise rated as fun by the likes of Evo Magazine. However, when I had a chance to drive a first-gen Škoda Superb 2.0 TDI, I was addicted. The space, the torque, the comfort, the leather seats (it was a higher-end model as it had an umbrella in one of its doors)...
Sure, the interior looked outdated even by the standards of its time and very much VW-ish, and I still can't wrap my head around why'd VW choose the Audi PL45 platform (i.e. one with a longitudinally placed engine in an font-wheel drive car) for the Passat (which this car essentially is), nor do I have a need for such a car, but it broadened the spectre of cars that I find interesting.
Also, I never found the Citroën BX particularly interesting, but now that my dad has one, and realising it's the most 80's Citroën of them all, I love it, for its space, comfort, its quirkiness, the memories I have with it... And the memories thing applies to my dad's Yugo, which was a car I was embarrassed of at first, but it's the car I actually learned how to drive on (not in driving school, but afterwards), and I had some fun times with it. Today I appreciate how easy and simple it is, and how everything can be fixed or replaced for peanuts. It also has a very important story behind it.
With the MX-5 NC, I liked them when they came out (but then, I was a child back then), stopped liking them when I read more about them in Evo Magazine and online, but I like them once again for the fact that it seems to be the most reasonable Miata for its money.