Railcar redux

The UK is a place with an illustrious history of innovation in public transport. The Glasgow subway is a good example from the Victorian era, 6½ miles in a loop, taking half an hour for a circuit, and even now carrying 14½ million passengers a year.
A UK company playing in the same space is now setting up a North American company to market their innovative rail car technology. Is this another British company that has had to go overseas to achieve success? All those years of trying to sell new ideas in the UK, especially to the public sector, are enough to wear anyone down.
The railcars are light in weight and use a Kinetic Energy Storage System, a concept comparable to that being introduced in Formula One racing cars in 2009. These people need all the luck they can get. Previous here.