2025+
A suggestion for a time miles from now...
The Mercedes-Benz Future Bus with CityPilot. With it's self-driving feature it will enable a significant reduction in collisions... Not only that but it will enable operators to redeploy employees to either other areas or different positions within the company. 

I think for a demonstration trial the vehicle should see exclusive use to local services to enable the use of the CityPilot. 

We are years away from having driverless vehicles across our region, although we should consider the advantages of having such a world first product.