Below: Presentation to the Transport and Infrastructure Committee investigating the future of inter-regional rail in Aotearoa/New Zealand on 15 December 2022
Below: Ray Columbus speaks to the idea of Cooltrainz. 2009
Below: Interview with Noelle McCarthy on Radio NZ National's "Kiwi Inventor who should be Famous". 2010"
Below: Taking Ray Columbus for a spin in the Holden Volt in 2012. The Volt was electric-drive with an onboard generator. Different and much more efficient than a hybrid.