Hydrogen would obviously work as a fuel for an internal combustion motor or a fuel cell-electric motor.
Hydrogen seems to be better generated by electrolysis than heat.
IF these guys have some sort of CF reaction going on, what are they using to perform work - heat or some from of electricity generation?
It does not say in this particular article... but they
applied for a patent to use LENR to power electric vehicles: https://www.google.com/patents/US20130263597
http://futureenergy.ultralightstartups.com/campaign/detail/1864
http://www.freerepublic.com/focus/f-chat/3093252/posts