A bug can be tweaked to handle either way -- over/under-steer. Aircooled.net has a good article on this --
http://www.aircooled.net/gnrlsite/re...s/handling.htm.
Obviously, for drifting, you would set up the front to grip and the rear to slip.
Front grip = high neg. camber, toe out, softer sway bar than rear, more caster, high air pressure, wide tires
Rear slip = zero or positive camber, zero or toe out, super stiffer sway bar, low air pressure, narrow tires
Balancing the front and rear traction for controlled drift would be the trick.