Sure. We see natural gas playing the role diesel did in North America in the sixties and seventies, when all large trucks were running on gasoline. Diesel engines were introduced and were shown to be longer lasting. They provided a better power profile. They got better fuel economy, but there was no infrastructure.
It took 10 to 15 years for diesel trucks to be adopted, to the point where 95% of all large class 8 trucks on the highway now are diesel, and it works very well. With the pressure now on petroleum prices, just as there was then, we see natural gas becoming a very dominant part of the energy mix in transportation in North America and many other jurisdictions around the world.