Before her wrestle with the Stig, Cameron Diaz took to the racing track, but dramatically broke her car during a high-speed race.
A shaken Cameron Diaz waved for help on the track, where the actress and Cruise were pitted against each in a bid to get the best lap time.
After receiving some initial training from the mysterious Stig, the actress took to the track, but apparently hadn't mastered her clutch control.
While going round the circuit, the motor came to an abrupt stop with the gear box making a terrible crunching sound.
Diaz, who is promoting her new movie in London tonight, then jumped out of the vehicle - a red Kia cee'd - and waved at the Stig for help. It is part of the Stig's role to train the celebrity drivers for the 'Star In A Reasonably-Priced Car' feature.
The driving expert duly came to her rescue in his white sports car before Diaz's car was worked on by mechanics.