..meh, I know of people who have fun driving their WagonRs...
D' you know how they do it? They play a game with themselves to see how much they can push the fuel economy of the thing. So everyday they try something new, mostly what they do is driving slower than usual... and when that FE indicator shows .1 km/l more, there! FUN! Hoo-frickin-ray!
And when they get tired of doing that, they drive uphill, reset the FE indicator, drive down the hill, take a photograph of the FE indicator, and post it on one of the many "WagonR owners group"s on facebook and challenge other WagonR owners to beat his/her fuel economy!
So you see, any car can be fun, you just have to have the right mindset.