I've been karting a few times as work outings. It can be fun, but I'm not that good at racing. There are a lot of places doing it here. One time we were on an area within the Silverstone racetrack. Some places use electric karts these days, so there's less fumes.
I think the electric karts would be much better. Maybe once the technology catches up they will all convert over to that. It seems a lot healthier and better for the environment. I can't remember the last time I was karting. I think it was down at Disneyworld.