850 if im not mistaken is non-turbo i think,i have one 940 turbo,solid and powerful 2.4 litre turbo engine..maintainance not much cause once the car is well taken care hardly spoil one..mine is in very good running condition.petrol wise is about RM120 full tank..previous owner took good care of the car so when we bought over nothing much to do just polish and those minor stuff,but my brake pump is using air pressure one,that one only everytime kena problem...other than that good.