Rally Mexico 2012 Qualifying Stage John (Co-Driver) is holding a wide-band O2 sensor meter. Mark (Driver) was adjusting the jets in the Weber carbs to account for the higher altitude. He was using the wide-band to confirm the correct air fuel ratio.
The stage time was fairly slow, considering Mark was concentrating on the gauges and wide-band sensor and John was holding the gauge while trying to read notes. The goal of the stage wasn't to go fast but make sure the car felt fine, was setup properly, and didn't break.