Tom: Jack,it is reported that General Motors has married a hydrogen engine to bi-wire computer controls to create the Highwire.
Jack： Yes,GM has been working as fast as it can on the Highwire.
Tom：Why is it?
Jack ： I heard that other car-makers are further down the road with hydrogen fuel cell cars of their own.
Tom：Who are they?
Jack ： Honda and Toyota already have a limited number of road-worthy models on the way.
Tom： Even though the prototype Highwire was up and running in on time，yours and mines may take a little longer.
Jack ： Why?
Tom：Hydrogen cars will need hydrogen fueling stations to power them.
Jack：Oh,I see. Yes,you have to wait for the stations to be built while you're waiting for the car.
Tom：So some experts said that one cannot expect a Highwire on road before the 2010 — 2015 time frame.
Jack ： Is it worth the wait?
Tom： Why not? It’s a car that doesn't pollute, that you control with a computer.
Jack： And that could power your home.
Tom： Just wait until you try.