In India, substantial number of employees from project building travel through motorbikes generally having following specifications:

Engine: 100cc to 150cc, 4 stroke
Fuel Efficiency*: 60 Km/lt or 135 mpg
CO2 Emissions*: 45 g/Km
(* with slight variations depending on make and model)

These vehicles perform much better in terms of Fuel efficiency and Low Emissions Standards as compared to ACEEE Green Score-40 vehicles e.g.

Vehicle: Audi Coupe TT
Engine: 2000 cc
Fuel Efficiency: 12 Km/lt or 31.4 mpg
CO2 emissions: 156 g/Km

Can motorbikes be considered as Low-emitting and fuel efficient vehicles to meet the intent of the credit?
Kindly suggest