You're wrong – a group of 28 gymnasts from Sussex have managed to fit inside one of the British-built cars, setting a new world record in the process.
The daring female volunteers scrambled their way into the Mini at Potters Fields Park, London, today as part of the eighth annual Guinness World Record day. The girls beat their own previous record of 27 people, which was set in Eastbourne last year.
The ladies made full use of every inch of space available in the Mini, including the dashboard, the footwells and they even managed to squeeze four people in the boot.
But that wasn't the only record they smashed - the girls now also hold the record for squeezing into a classic Mini.
As soon as they celebrated their first record the ladies dashed off to the ITV studios to attempt the second record live on This Morning, where by squeezing a staggering 23 ladies into a classic Mini, they managed to beat the previous record by two people.
Speaking yesterday, organiser and swimming teacher Dani Maynard said: "While we have not quite been able to fit any of the girls into the Mini's glove box, there is a surprising amount of space to utilise and we are really confident that we will break the record again this year.
"After our achievement last year, we know exactly what it takes to squeeze 28 people into a Mini and we stepped up our training regime to include extra stretching and fun activities like hula-hoop relay racing.
"With the help of our local Mini dealer, Chandlers Mini, we have also had the opportunity to practise positioning everyone in the car ahead of the big day."