Listen to this article This all started from us being irritated. Back in 2016, the first time Autosport undertook a project to rank the world’s major categories based on lap time, the impetus came from the annoying crowing of a cluster of so-called motorsport authorities that LMP1 cars from the World Endurance Championship were faster than Formula 1 machinery. Not that we dislike the WEC – far from it, we love it – but such pompous proclamations were plainly untrue. Then this was overtaken by a genuine curiosity to find out where LMP1 stacked up against GP2, IndyCar and Japan’s Super Formula. And how did all the other classes compare? Six years on, we thought it was time to do it again. In 2016, we did our calculations based on data from the 2015 season. So here’s our take on 2021 …