Hello K00kla
My first suggestion would be to ask yourself whether you can get by with only one car. Often people think they absolutely "need" two cars, but find there many ways to get by with just one (bike, bus, walk, carpool, etc). That's the route my and my SO took.
That said, 0.9% is a fantastic loan but what you probably paid, what, ~$18k for a new Fit? You could sell the one you have, purchase a used fit for $8-10k and put several grand in your pocket. IF you keep the second car at all.
N