It's probably not a coincidence and it's probably not the sole reason that CGI got the job. The number of layers involved in winning such a bid has a tendency to keep out favoritism and nepotism of the sort you imply. CGI is hardly a fly-by-night organization.
Consider that agile boils down to an iterative and incremental approach with much concern given to doing things the right way the first time and I think you'll see that the space program's project methodology is closer to agile than it first appears.
It's especially good because electric vehicles are around 4x as efficient as internal combustion engines.
The Leaf uses larger flat sheets of batteries to increase their ability to release excess heat.