Driver Heikki Kovalainen & Pedro de la Rosa
Location Circuito de Jerez
Track length 4.428km
Weather Completely dry. Extremely cold in the morning but warming up over the duration of the day.

Laps completed today 96 (Heikki, MP4-23A); 47 (Pedro, MP4-23K)
Laps completed in total at test 332 laps (47/142/143)
Kilometres covered today 633km
Kilometres covered in total at test 1470km (208/629/633)
Best laptime today Heikki: 1m18.049 at 12:55pm
Best lap time of the test Heikki: 1m18.049

Heikki switched to the MP4-23A and spent the final day successfully running through tyre work and aero mapping. Pedro stepped back into the MP4-23K KERS development car but his day's mileage was limited by a number of small issues with the device. Next week, the test team will conduct a one-car programme at the new Portimao track in Portugal, primarily focusing on KERS work with the 23K and collecting data from the new venue.

Duration of test Three days (Dec 9-11 2008)
Next test: Portimao, Portugal (Dec 15-17 2008)

-credit: mclaren