Tesla has been tweaking the options sightly for some time now and there were some that were not available at the time of delivery. I'm trying to make a timeline when the options came out or were put into production Signature options- June 2012 General production- ???? Grey interior - November 2012? (VIN 1908 has it) 60 kwh - Jan 2013? Spring suspension- Jan 2013? Red color- ??? Performance plus- April 2013? 19 inch aero, 19 inch cyclone, Ultra high fidelity sound system, packing sensors- ?? If possible, VIN numbers would be very helpful too. As an example, if you have a Sig with grey interior, green with the 19 inch aero rims, with the performance plus package it's not original. This timeline will aid future restorers in like 20-50 years since the Model S is going to be a highly collectable car. I'll update this periodically to get a more precise VINs and dates.