Matt,
let's put you in the overenthusiastic, high on nitro, "fool" category.
The option for "cackle" cars to make partial runs has been around for some time but is rarely exercised because as to my knowledge it requires some non period stuff in the bellhousing area--steel can, blowback tubes etc. It is also only intended to happen with cars with history and experienced drivers under extremely controlled circumstances, i.e. exhibition only, no racing.
You are way too hyped up on this three point cage deal and need to take a chill pill. As I posted on the HAMB, the three point cage is not going to bring any more fans to the track--you have been doing some bad drugs if you really believe that. What will bring fans is competition like we saw at Bowling Green at the NHRR and cars with personality--full bodies, cool graphics etc. The average fan would need to be hit over the head with a three point cage to see the difference.
Roo