distances travelled vary considerably between cities as well the length of the average trip by car is km in mumbai but only km in bhopal the pump price per litre of diesel varies across the region from usd in brunei darussalam to usd in china and india while that of gasoline ranges between usd in brunei darussalam to usd in singapore figure fuel prices can account for a large share of drivers transportation costs box these prices are affected by taxes which are often designed to generate revenue and to price the environmental effects of vehicle emissions