RAC Foundation research suggests that drug—driving is now a bigger problem than drink-driving among 17—24 years olds. Edmund King of the RAC Foundation said: “We hear that more people smoke cannabis as a recreational drug. The danger now is that mixing that with alcohol could produce a deadly cocktail that motorists may not be aware of. Cannabis may make people feel more laid back but combined with alcohol gives them the impetus to drive. They may think they are not over the limit  and in fact could be under the drink-drive limit,  but still be more dangerous.”