The conventionally powered buses, either with longitudinally mounted diesel or natural gas engines, used a T-drive transmission coupling.

[2] All buses, regardless of fuel type, use longitudinally mounted engines with a T-drive transmission coupling driving the rear axle.

Compressed natural gas (CNG) buses carry their fuel on the roof in eight tanks, with a collective volume of 10,440 cu ft (296 m3) at a pressure of 3,000 psi (21,000 kPa), measured at 70 °F (21 °C).

[3]: 7 [4]: 7 [6] A series hybrid bus was developed by the New York State Consortium using an Orion V 40' chassis equipped with powertrain components supplied by General Electric.

[9] Major transit agency users included New York City (MTA), Toronto (TTC), and Washington, D.C. (WMATA).