hi, im driving 1994 318 and with RM100 i get 520KM town drive. for highway, i get ~800KM for RM 100. not too bad huh?
but i got to agree with the underpowered part. it wont give u much power if u r the type who likes to get going very quickly. only enough for those who are sopan2 one when driving. nevertheless still its a UDM!