[VTAKYO]

In that case I'd say the idea of a limited registration would be advisable, as opposed to a blanket certification that allowed them to drive whenever. Regardless of the car and driver, like fuck would I want a 100+dB T-bucket (or any type of car for that matter) coming home down my street at 3am. During the day I wouldn't care, I'd be all for them being able to drive their pride and joy.

Even Competition cars are noise limited.

MSNZ Manual #34 - Schedule A 5.6: All vehicles shall be fitted with an efficient and effective silencer that;
(a) Does not exceed the maximum permitted noise level

For example, at Ruapuna by the archway/barrier arms, there is a sign stating the 95dB noise limit. Also, this means if on the road the car adheres to normal noise limits.

Schedule A 8.1 states that cars used on the road must have a WOF/REGO (or at least for the period of time in which it is used on the road). It passes through the same process with the exception of rights given under Schedule A 8.2. This states that authority cards only cover: harnesses, rollcages, modifications affecting structural rigidity/integrity, brake modifications, removal of factory protective items (airbags etc), installation of competition seats, and alternative material windows. Modifications other than this run under standard LVV and LTNZ rules and general traffic regulations. It does not cover engine/exhaust/electrical/suspension rules (apart from suspension modifications affecting the structure of the car).

As I said earlier, a car used on the road is in fact a car used on the road. All the certification process covers is the safety of the car, as your average WOF man is probably not knowledgeable enough to deal with cages and harnesses. Other than that the car logically should adhere to the same rules. Indicators, noise, etc.

I think the rules are fine as they are.