'71 Dodge Charger SE, purchased after my second year as a teacher.
(My father insisted that I use his car for my first two years of full-time employment, in order to build up my financial resources. As a result of his wise counsel, I purchased that Charger--and all of my subsequent cars--for cash, thus saving a small fortune over the years by not having to pay financing or leasing fees.)
It was a really beautiful-looking car, it was comfortable, and it was also reliable. The downsides were crappy brakes and gas mileage that topped out at 17 mpg, with 13 mpg being a more typical figure. And that was with the 318 V-8, the smallest V-8 that they offered!