dated all the running things with three thirty eastern teary or looks identical to regular three series b.m.w. apart from this one but in you can use it to select one of the three drive modes and electric like auto drive mode where the gasoline engine and the electric motor work together or maxi drive that lets you reach a top speed of one hundred twenty kilometers an hour using electric power only while the save battery mode does just what it says saves battery power or recharge is it. these drive modes could be great for intercity louis mission zones and commuters will appreciate them too but they use electric power to the max will need regularly recharging the battery otherwise you'll soon be back to using gasoline and belching purity exhaust.