I don't put much faith in that estimate. The original Bloomberg article threw out that $9,000 figure from an anonymous source with absolutely no corroborating evidence other than the idle ramblings of a little know automotive analyst who "reckons" most electric cars lose at least $10,000 per sale. 

More recently, analysts for UBS tore apart a perfectly good Chevy Bolt and found that the powertrain for the Bolt was $4,600 cheaper to produce than originally thought, “with much cost reduction potential left.” But they still ,  “... estimate that GM loses $7,400 in earnings before interest and tax on every Bolt sold today, mainly due to a lack of scale.”

At a DCFC station, a very happy Bolt owner showed off the car to me. Very roomy, very nice.