Extended warranty seems to be personal preference. For the most part the majority pass on any extended warranty due to the lengthy factory warranties. Mine came with a GMPP when I purchased privately and had to pay a $50 transfer fee and it actually paid off on a window regulator replacement 3 weeks after I bought which was nice. Aside from that, it's only given peace of mind.
As for steering wheel heat, that was never available in the Gen1. Electric range seems to vary depending on how heavy your climate control usage is. We've been having quite a heat spell here in Central CA and I've had my a/c pumping out at 75, comfort and seeing range in the 35 mile range. In cooler, less "hell like" weather, I managed mid 40's on the GOM. Of course my driving pattern likely isn't the best for maximizing range, but I don't try to drive like Jeff Gordon either.
As for steering wheel heat, that was never available in the Gen1. Electric range seems to vary depending on how heavy your climate control usage is. We've been having quite a heat spell here in Central CA and I've had my a/c pumping out at 75, comfort and seeing range in the 35 mile range. In cooler, less "hell like" weather, I managed mid 40's on the GOM. Of course my driving pattern likely isn't the best for maximizing range, but I don't try to drive like Jeff Gordon either.