The average cost to insure a 17-year-old is £1,960.73, with some quoted as much as £17,000, The Sun found.
And prices will rise again in October when the Government increases the insurance premium tax.
We used Compare the Market to pose as skint 17-year-olds looking for cover for their first car.
A girl in Sheffield with a part-time job would pay at least £4,462 to cover a £750 Mondeo.
And an apprentice plumber in Northampton will need almost £2,000 to insure a ten-year-old £550 Vauxhall Corsa.
Some insurers quoted £17,000-plus for a 17-year-old, while a third refused insurance.
The cheapest quotes required drivers to have a black box.
Edward Molyneux, of Big Deal campaign, said: “They shouldn’t be punished for the sins of the minority.”
But insurers said high premiums reflect potential damage caused.
The AA said: “A driver in a ten-year-old car is just as likely to knock someone off a cycle as a driver in a year-old model.”
Source: The Sun