$Tesla(TSLA.US) now down -3% AH despite beating 3Q estimates on earnings, auto gross margin ex-reg credits, and free cash flow. CFO Taneja didn’t help matters on the call when the RBC analyst asked about the 75% North America attachment rate taking into account the first month is free on a subscription and whether the attachment rate was 75% or “according to [his] math, is like 30% to 40% in North America on a paid basis.” Taneja didn’t really answer what seemed like an easy question. Of course TSLA could be down AH after running up +7% over the past three days in front of earnings (i.e., sell the news).