apparently if QLD transport let you rego a car, its legal for you to drive it... unless people are telling me a bunch of crap. I know of people who are on their p's and they drive turbo though, cause qld trans let them rego it.
Ive got a jdm b16a eg, may have seen it cruising around. doesnt need a mod plate, as long its registered to the chassis cause they came standard with a b16 in jap. Apparently its only legal if you have an "engineers" cert, which costs like friggin 3k. mine doesnt have engineers cert but its registered to the chassis and qld trans let me rego it so all good!!!