Energy considerations:
A MAXI-RUF is driven by a 40 kW hybrid motor. Road driving at 25 mph uses an average of 20 kW. 20 kWh is used on 25 miles, so 1 mile costs 0.8 kWh. Estimated cost is $0.2/kWh since it is partly produced via the hybrid unit and consequently must pass several stages.
The cost of energy driving a MAXI-RUF on the road is approx. $0.16/mile. Part of the trip is made by using batteries only (dense parts of the city), the rest is made by using the combustion engine plus a generator in combination with the batteries.
Driving on rail is cheaper partly because the supply derives directly from the network, and partly because the air resistance is reduced when close coupling takes place.
Calculations are made with $0.1/mile for rail driving.
A RUF is operated by a 20 kW electric motor. Road driving at 30 mph uses on average 10 kW. 10 kWh is used driving 30 miles, so 1 mile costs approx. 0,3 kWh. Estimated cost is $0.3/kWh, since it has to pass the charging cycle of the battery.
The cost of electricity driving a RUF on the road is approx. $0.1/mile.
Driving on rail is cheaper for the same reasons as given for the MAXI-RUF.
Calculations are made with $0.06/mile.