What feature / capabilities do you feel your car lacks relative to the AWD version? From the spec sheet, the trade-off is 30 odd miles of better range and $2500 lower price (RWD) for the better acceleration / traction of the AWD. I drove the RWD version available at the time ("standard range") and didn't find it particularly lacking as a driving experience. Then again, it was dry and warm - so slick roads weren't part of that experience either.
I wound up getting an AWD because at the time of purchase the long range RWD wasn't available, and the slower DC charge rate and shorter range of the RWD at the time would tip the trip experience into the unacceptable territory, particularly as the car ages.
My ennui over the MY is mainly in the ride quality area and NVH over certain pavement. The car does get annoyingly jiggly on crappy roads so common in FL. It's fine on smooth roads, but 'gatorbacked' pavement starts feeling like the inside of a base drum being under a steel ball bearing waterfall, with hobby-horsing that reminds me of 70's 'performance' cars.