OK, I'll try again. For the last time and I'm giving up

Promise!
DRL in the meaning of EU law (from 07.02.2011) means separate, dedicated lamps which cannot be used for anything else then making the car visible, unlike normal front lamps used to illuminate the road ahead. Fog lamps will not do, dipped beam will not do. This requirement applies only to new types of vehicles, meaning vehicles never registered before.
There is also something what a lot of people call DRL which is a national legal requirement to drive with the lights on 24/7 using anything that's bright to make cars visible: main at low power, dipped, fog or DRL (in the meaning of the above). Mandatory in Nordic countries since 1970s and some others recently. To avoid confusion with the 'proper' DRL above I prefer avoiding calling them DRL. This applies to all cars on the road and it's done usually by setting the lights to be always on when the ignition is turned - usually done by the dealer.
One can say all cars in Sweden have had DRL since 1970s and I would say they have been driving with lights on. The same thing - different name.
As for UK - there is no requirement to drive with the lights on 24/7 but as part of EU, UK must refuse to approve new types of vehicles without separate, dedicated DRL. So, when Lotus wants to release a new model and wants it approved - VCA (Vehicle Certification Agency) will want to see the lights
