A foreign news source indicated the Giga Press was active at Fremont, but is actually it in production? I just ordered for delivery in Atlanta (Nov/Dec timeframe). But I see some advantages to the new cast frame (lighter, possibly some range improvement due to weight reduction, fewer places to rattle, more consistent framework for panel attachments, etc.) so I'd like to defer my delivery until I can be sure the vehicle was built with the new casting. Is there a way to tell for sure if a Model Y includes the single piece cast rear frame? Is there a known build date or VIN# for the cutoff on the non-cast frames? Thanks for info!