A group of 28 gym girls from Eastbourne, East Sussex broke the record for being the most people crammed in a modern Mini, completing the feat in 18 minutes at Potters Field in central London.
The group led by Dani Maynard, had four people in the boot and broke the previous record by one person - who crammed in the Mini Hatch car for five seconds, the Daily Mail reported.
Faces were squashed against the windscreen and bodies were hanging out of the popular vehicle’s windows as the girls broke their own previous record of 27 set in Eastbourne last November.
“The adrenaline is amazing, but it’s like the worst thing ever – there’s no air, you just have to zone out,” Jayne Brockwell, whose choreographed position earned her the nickname ‘Gearstick Girl’, said.
The women on the River Thames south bank gave morning commuters a laugh, as they took part in one of many events happening around the globe to celebrate Guinness World Records day.
The eighth-annual record breaking day was rung in by 15-year-old Lachlan Phelps in Australia who set a new record for the Longest Note Held On A Didgeridoo of 65.66 seconds.
One of the day’s wackiest records was achieved in Japan, where Kenichi Ito broke the world record for the Fastest 100m Running On All Fours.
He completed the distance in 17.47 seconds shaving over a second off his own time, and dreams that one day the Olympics will introduce an ‘all fours’ category.
Meanwhile in the US, athlete Tone Staubs broke the record for the Most Pogo Stick Jumps In One Minute with 265 in Stamford, Connecticut.
And in Germany, 18-year-old Michael Kopp broke the record for the Longest Duration Spinning A Basketball On A Toothbrush, with the basketball-freestyler managing to keep a ball spinning for 26.078 seconds.
Guinness World Records editor-in-chief Craig Glenday said: “The Mini is a British icon, and the Mini-cram has become a symbol of classic world record breaking, up there with cream-cracker eating and leaving your fingernails untrimmed.
“Like Guinness World Records, it’s a successful child of the 1950s. Guinness World Records Day is a chance to celebrate not just the incredible individual achievements but also civic and national pride,” he added.