Did you mean Civic HATCHBACK? If so then I would recommend an older generation civic hatch or a crx if you can get one as your auto-x vehicle of choice (EG6 comes to mind). They're lightweight and relatively cheap. There's always room to swap in a more potent B16A or B18C if power is what you need. Plenty of amateur racing organizations/leagues are littered with civic hatches, and for good reason too.

Shingo