In Bimmer.work the car shows a production date of 2015-09-10.
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No 230 or 428 listed in the options
From the history in Carfax, started life as a Dealer service loaner in Texas, in a smallish-town (100,000 population). Then was sold on a three year lease. I got it from a BMW lease return vehicle auction when the lease ended, and the previous owner turned in the car.
Might be something the Dealer just added?
2015 i3 Rex, Capparis White, Tera World, Technology & Driving Assistant, Parking Assistant, Harman Kardon Audio System, 19 inch 427 wheels, EVoInnovate EVSE