Many electric cars owners have been reveling in their purchases as gasoline prices reach record highs. The national average for a gallon of gas hit $4.25 on Wednesday, up from $4.17 the day before, and it is expected to rise as the fallout of economic sanctions levied on Russia in response to its invasion of Ukraine continues to trickle through the petroleum industry. U.S. electricity prices, which are heavily regulated in most states, have remained stable, however, and the cost to charge an electric car is still much lower than filling up one with an internal combustion engine, but only...