The 24 Hours of LeMans is the quintessential motorsports event every year, pitting the top automobile racing teams in the world against the endurance trial of completing a full day’s run at “full chat,” as the British used to say, overcoming weather, wear and tear, and competing drivers. Traditionally populated with internal-combustion gasoline engine powered racers in many sizes and classifications, the race has seen inroads with turbo-diesels, hybrids, and hints there may be soon full electric competitors. The most advanced class this year comprised a collection of formerly exotic technologies, with a variety of approaches to going fast. The race’s official web site explains, “The LM P1 class (Le Mans Prototype 1) welcomes machines at the leading edge of …