Things like Bluetooth will be standard, while Sirius/XM would likely require a premium audio package. Safety features such as emergency braking will be standard on all Teslas. Tesla is a business, and their purpose is to move the world toward sustainable transportation while making a profit, so that they can continue doing so. Therefore, it makes sense that the first cars they sell will be highly optioned. Consider things like autopilot, and dual motors being options of about $3k each. Add leather seats at $2500 or so, and you have a possible tech package that could add $2500 or more. This ads up to $11k. Lets say they produce only these initially, the average selling price moves from $35k to $46k. Multiply $11k by 10,000. On 10,000 the additional revenue adds up to 110,000,000 with an additional margin or $22,000,000, if the additional margin is 20% of the additional revenue. I can see why they would want to sell the highly optioned cars first.