I just bought my new leaf 2015 Model S!! Definitely love it and feel that the whole point of this car is to get it as cheap as possible, so I went with the model S. But, now I'm learning about Carwings and other useful benefits like per-conditioning of the SL and other models during winter times. I've searched a lot of blogs and saw that people say you can pre-heat your Model S somehow, but nobody has ever explained it to the "T". Does anyone here have a Model S, and uses the timer option to pre-heat your leaf before work?