Although not offered by Tesla, consider a plug-in hybrid (PHEV) car or SUV. For example, the Honda Clarity goes the first 47 miles on Plug-in battery power and then switches to a gas engine with 40+ mpg. 47 miles could cover your local trips and the gas engine would cover the longer trips. You might even prefer the PHEV air conditioned comfort over your golf cart on those hotter days for local trips.
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