I personably think for the average person that the price difference even at 1.5 cents per KW you would have to drive over 150K. 30 grand buys a lot of fuel.
i looked at the tesla model 3 (all wheel drive and optional larger battery) before i bought my subaru impreza. it was a cool car and i'd have definitely been interested in it at a cheaper price. the tesla was about 50,000 dollars..got my subaru for almost 30,000 dollars cheaper. at roughly 30 mpg out of the subaru it would take years to make up that 30,000 dollar price difference in gas costs.
good thing is more and more manufactures are coming out with full electric cars so the price will come down and quality will come up as the years go by...