I can vouch for the car. The previous owner, Erik, is a buddy of mine here at flight school. I don't think he bought it stock (can't remember), but he did do most of the work to it. He decided to go water/meth after seeing it on my jetta and talking about it. He said he just needed something more. He ended up going with a vast set up and I run the snow performance kit that nate hooked me up with.
Anyway, in a pinch, you can make your own reliable batch from any place that sells plain windshield washer fluid (not the stuff with antifreeze or debugger) and the yellow bottle of HEET. Just mix 3 bottles of heet with a gallon of the washer fluid and you've got a good mix. You can get both at any autoparts store or walmart. and if you're in a place where a walmart isn't in existance, then you have other problems.
For a permanent, more gooder batch, I pick up an x amount of methanol from the local dude that sells race gas and an x amount of distilled water and mix them together 50/50.
Another buddy uses rc car/helicopter gas (found at the local hobby shop) because he couldn't find a dude that sold race gas and he mixes that with the distilled water. No issues.
In a REAL pinch, you can just run straight up windshield washer fluid. It is still mixed approx 70/30. 70% water, 30% meth. You're just not gonna have the best effect, but it'll help, especially if you run a 100oct file like I do.