Crashes involving a young driver between the ages of 17 and 21 are taking a terrible toll on teenage passengers, according to the latest figures from the RAC Foundation. Last year, 234 teenage car passengers were killed or seriously injured when the young driver they were travelling with was involved in a crash. That’s more than four a week. If you include casualties of all severities, the figure is 2,144, or around 41 each week. It’s not just passengers that are caught in the wreckage. In 2013 there were 191 people under 24 killed and 20,003 injured as drivers and riders of cars and motorbikes, according to government data. The casualty figures are not only high, but they are also disproportionately high. Teenage drivers between the ages of 17 and 19 make up only 1.5% of full licence holders yet they are involved in 12% of accidents where someone is killed or seriously hurt.