[Wazza]

Not sure....
But I've driven a few Cobras in Queensland that used "Race Harnesses" as their normal seat belts...
and they were an absolute pain in the backside.......
You only realize how much trouble they are when you have to buckle up everytime you jumped in and out of the car.

Find the ends....lift yourself back out of the seat to get the one belt that you can't pull out from under your backside...gather all the ends....clip them in....then adjust the belts down on your chest...and you're away.

Stop for a coffee...or forget something inside the house...etc. etc., and you go through the whole lot again.

My 2c worth !

Cheers,
Warren.