Tesla recently stated: "These features operate on a new hardware and software platform. Therefore, their rollout will be measured and cautious until we have generated confidence across several hundred million miles of real-world usage." I thought it would be interesting to model the cumulative miles driven by the HW2 fleet and see where 300M miles (the most liberal definition of several) lands. Short answer: At the end of June, 2017, the HW2 fleet will have driven 332.4M miles. Assumptions: 1. HW2 cars hit the roads on 11/1 2. Tesla is adding 8K cars per month 3. Several means 3 4. The average yearly number of miles driven is 13,476 (I used the USA average across all demographics. USA has the highest average, so if anything, my numbers may be slightly too liberal.) Link to spreadsheet @google.