I think most Peavey's are underrated. I had a Zephyr and still have an International and considering how well they play and how good they sound, they are dirt cheap.
I regret selling the Zephyr.
If you want cheap, small and practice then the Skoda Roomster is superb. It costs bugger all to run an has an enormous boot for a small car. You can also remove the back seats completely and it's a small van