Vehicles having power producing units and power consumptive units. The power producing and/or consumptive units are controllably engaged to match load and power usage to provide more optimal efficiency. One embodiment includes a vehicle defined by a first side, a second side, and a longitudinal axis between the sides. The vehicle includes a plurality of vehicle supporting wheels which are driven by engines or electrical motor, or engine-electric motor hybrid combinations. The consumptive systems and power supplied thereto are controlled to be activated or engaged as needed under sensed operational conditions. Further embodiments are shown which have consisting of a first wheel driven by a first motor and proximate the first side, a second wheel driven by a second motor proximate the second side, and a plurality of tertiary wheels. The first and second wheels are in some forms of the inventions not symmetrical with one another along the longitudinal axis of the vehicle. The vehicles may also have alternative drives and types of drives depending upon the type of vehicle and the various locomotive systems and power consumptive systems used on the vehicle for locomotion or other functions.