wow - lots of responses
Thanks for all the quick responses. My thought process was in line with pretty much what all have said, I just have no experience with autocrossing so wasn't even sure where to start and I appreciate the guidance from those more experienced.
I will use the car I have and learn from there. But, when that car decides to begin stalling more readily and refuses to start up I will need to research something that would hopefully be a good daily driver and also a decent setup for the basic levels of autocrossing.