Wait, if I have more than a dozen tanks running in the T2K universe that would make me an A-grade dickhead with really bad hair?

I believe you're right about that. However, a Wiesel is far from being anything close to a tank! :D
Correct! Except it's a wig isn't it?

<tommyleejonesint2k>
"Son, what are those?"

"Uh, they're treads sir."

"Uh-huh; and what's that?"

"It's a TOW missile launcher, sir!"

"And what does it do?"

"Well, uh, we can destroy enemy armor with it and - "

"Then it's a tank."
</tommyleejonesint2k>

http://en.wikipedia.org/wiki/Wiesel_AWC
http://www.rheinmetall-defence.com/e...cles/index.php
http://www.army-guide.com/eng/product943.html
From the look of it, the Wiesel would seem to have more in common with an APC than a tank, although by 2000, anything with armour and a heavy weapon will be useful as a "battlefield bully".
With it's civilian origin engine it's possible there may be proportionally more of these floating about than other vehicles. It might also be possible to fit engines from damaged trucks, etc (I'm no mechanic so can't speak about the problems).