are the tires that are better than others sizes makes that kind of things
I just run old or scalloped winter tires myself... they have an aggressive enough tread to dig and are still street enough to handle-ish.
As for specific tires, i find the Goodyear Nordic's seem to work the best as far as that goes, but i imagine there's actual dirt tires you can get.
![](http://carphotos.cardomain.com/ride_images/4/608/3209/39019104064_medium.jpg)
96 2.2L, #66 on the dirt track