The Model T is over 100 years old now, surely Ford can't have a monopoly on a name that long right?

Trademarks don't expire as long as you keep using them - and you don't have to use them in necessarily very conspicuous ways (that's the reason all iMac boxes have "Think Different" in small lettering on the side[1]). I wouldn't be surprised if Ford still maintained the Model T trademark.

[1]: http://en.wikipedia.org/wiki/Think_different#Product_packagi...

And Ford actually sued another company in 2000 for trying to use the name "Model E":

http://www.autonews.com/article/20130822/OEM04/130829966/tes...