Hi, i just purchased a 2015 x5 40e hybrid with 92mls on it. I now have it nearly s week and charge it every night however i am very disappointed with its range as i am only getting 2-3kms from a full charge. From reviews and the main reasoning for going this route was that bmw specification say they averaged 12mls/19kms - 25mls/33kms from a full charge. What could possibly be wrong?