Got a warning light a month ago entitled "Drivetrain" which said "Only Electric Drive Possible" and advised visiting a service center. I have visited service center 4 times: 1st time they replaced fan motor; 2nd time they replace fan module; 3rd time they replaced the 12v battery; and yesterday they said I need a new drive battery and gave quote of $41,578.38. I drove it home and intend to use it without motor but it did strand the serviceman so I'm a little worried that could happen to me. I bought the 2015 i3 from my daughter and I love it. Any suggestions on where to go from here????