Porsche Cayman Owner's Manual page 110

The intermediate time will be displayed for
approx. 5 seconds.
The on-board computer display then returns to the
"Stop timing/Intermediate time" selection.
110
Controls, Instruments
f You can stop the stopwatch or measure
another intermediate time.
In order to start timing a new lap:
The "New lap?" selection appears for 5 seconds
after selection of "Intermediate time".
f Select "New lap?" with the operating lever and
push the operating lever forwards.