Jack bought a pink Nissan on an internet site

Jack Neal's parents only discovered their son's successful bid when they received a message from eBay about the Barbie pink Nissan Figaro.

Rachael Neal, 36, said her son was quite good at using the computer.

Mrs Neal, of Sleaford, Lincolnshire, said she had left her eBay password in her computer and her son had used the "buy it now" button.

She said: "Jack's a whizz on the PC and just pressed all the right buttons.

The car was a £9,000 pink Nissan Figaro

"I was just horrified.

"We now have the parental locks on - and we make sure we sign out of eBay!"

She said her husband John, 37, had called the seller of the car and explained the mistake.

"Luckily he saw the funny side and said he would re-advertise," Mrs Neal added.

The seller of the soft-top second-hand car, Paul Jones, co-director of Worcester Road Motors in Stourport-on-Severn, near Kidderminster, Worcestershire, said he had been "amused" by the bid.

It is the first time the car dealership has sold a car on the site, Mr Jones said.