I love my Model S a lot more than I ever expected, even though I had high expectations. When I bought it (ordered late 2013 and got it March 2014), my thoughts were I didn't need all the bells and whistles so I ordered what I needed. But now I find myself configuring a P90D, which will likely be my next one, but holding back thinking changes are again afoot. That's where my question comes in. When I buy again, I plan to keep it a long time (famous last words), and we all know Tesla constantly improves. So when to trade in and upgrade? The nose cone on the Model S has never sat well with me. I'm thinking the exterior is due for a revision and Elon's tweet last November saying no major changes for one year has me thinking the nose could be changed soon. I hate to get one only to have the next one roll off the line looking like this: But life's too short not to have autopilot sooner rather than later. Then again, what else is in store? More sensors, cameras, etc. once the beta testing is done noting the shortfalls? Do I wait one year? It's not that hard to wait with my current classic car. Anyone else in the same boat? Thoughts?