Teenagers could have to wait a year longer than currently before they are allowed to take their driving test.
The government is considering issuing only 12-month probationary licences at the age of 18 in a bid to cut accidents involving young motorists.
New drivers would also face a curfew between 22:00 and 05:00 unless a passenger aged over 30 was in the car.
It recommends a one-year “learner stage” beginning at 17, during which drivers would have to total at least 100 hours of daytime and 20 hours of night-time practice under supervision.
Learners can then take their test at 18 and, if they pass, will get a probationary licence and have to display a green “P” plate.
During this stage, drivers will face the curfew and all those under 30 will be banned from carrying any passengers also under 30.
After the 12-month probationary period, drivers will automatically graduate to a full licence and unrestricted driving.
Statistics show that more than a fifth of deaths on British roads in 2011 involved drivers aged 17-24.