^There have been lots of inexpert suggestions over the years that the traditional GO bilevel model is compatible with a EMU or maybe DMU configuration..... and lots of artwork from consultants who didn't have to build, maintain, oroperate same.... but I'm not convinced that anyone ever asked a PEng if it was feasible or desirable.
Seems to me that the design has maxed out the interior space (ie passenger capacity) at the expense of underfloor space and/or weight carrying ability. So to my layman's perspective, the design might be a terrible starting point for a self propelled car design.
I would speculate that when GO seriously contemplates self propelled cars, (as they should) they will land on a different design that is purpose built for that operating and maintenance mode.
The last thing we need is for a builder to cram electrical or diesel components into some disfunctional arrangement that is hard to maintain or pushes the envelope on stress factors for the car. So my bet is, the bilevel fleet ends up behind electric locos or mu'd to some new power equipped railcar.
There's a difference between how professional designers think and those who just say "wouldn't it be neat if....."
- Paul