This unbelted testing seems to be US centric and may be because of the propensity of non seat belt wearing population.All this talk about the handle surronds unbelted drrivers. So wear a seatbelt, problem solved. we have to anyway. Seems like a no brainer to me.
Anyway, if anyone seriously does want one and cant get it direct themselves. I am happy to ask the dealer about ordering some and to see what postage would cost for you. Obviously Ineos stuff aint cheap, and ordering and then OS postage aint quick
This type of testing is not performed in Australia and from what I can see the EU.