They travel so fast, all the air is sucked out of the carriage, and the passengers suffocate!!

It's the genuine article, Ray. Built in 1858.
It's related to the one in Toowoomba insofar as they were both 'recovered' from their resting place and restored in the early '80s by the same collector, Neville Locker, in Cooma. This one now needs TLC but it is not damaged - it is just a bit weathered.