They're relatively bulletproof if maintained properly, and like you said, can me made to go stupid fast. Some of the fastest cars at a recent "import vs domestic" night were DSM cars. Check it out some more, I know there's tons of forums where you can get info regarding known trouble issues etc, but I think it'd be a pretty fun toy car with lots of potential. AWD certainly is a plus in our climate too. Good luck !
'14 Mustang V6 Prem. Perf. Pkg