Laws in Canada, Denmark, Finland, Hungary, Iceland, Norway and Sweden require vehicles to operate with their lights on during the daytime.
Some laws require all vehicles to be equipped with DRLs.
Others simply mandate that drivers turn their lights on at all times. We have not seen DRLs on Nissan, Mitsubishi, Mazda, Honda, Acura, Infinity, Kia, Jaguar, Audi, Porsche, or Ferrari vehicles. GM will sell a retrofit DRL kit for vehicles that don't already have them. The kits will be usable on non-GM cars, as well. Profitable, very profitable.