One in five young motorists admit they drink and drive, a new survey has found.
And 7% say they use drugs at the wheel, according to the study by road safety charity Brake and Co-operative Insurance.
Of 3,118 teenagers quizzed, a third (32%) said they had also been a passenger with a driver who was drunk or on drugs.
Government figures show an average of three youths aged 17 or 18 are killed or seriously injured in vehicle crashes in the UK every day.
Sky News talked to one man who knows all about the dangers of getting behind the wheel after drinking heavily.
As a teenager in 1990, Chris Lee broke every bone in his neck and head when he crashed his car after an afternoon of drinking.
He told Sky's Eamonn Holmes: "Look at the pictures of me. People need to remember there are consequences for their actions.
"It has totally changed my life. I want it to educate other people to stop their life from changing.
"If I had injured somebody else I would not be standing here today talking to you because I would not have been able to live with it.
"I can just about live with what I have done to myself."
A Government paper, to be published in the next few months, is expected to suggest ministers consider an overhaul of driver training in an effort to cut the death toll.
One idea is a system of graduated driver licensing, which breaks the learning process into stages.
Typically, it includes restrictions on novice drivers to limit exposure to high-risk situations, like a ban on carrying young passengers and a zero alcohol limit.
Jools Townsend, of Brake, called for graduated driver licensing, compulsory road safety education and more investment in traffic policing.
He said: "Every day young drivers kill and seriously injure themselves and others through a deadly combination of inexperience and taking risks like drink and drug driving."
There is also a video clip on the page.