something to think about besides the laptime....
"SPEED TRAP FIGURES
Jerez F1 test, February 1-4
1 Felipe Massa (Williams-Mercedes) 307.6 km/h
2 Nico Rosberg (Mercedes) 307.6 km/h
3 Pastor Maldonado (Lotus-Mercedes) 306.8 km/h
4 Max Verstappen (Toro Rosso-Renault) 303.3 km/h
5 Marcus Ericsson (Sauber-Ferrari) 303.3 km/h
6 Kimi Raikkonen (Ferrari) 300.8 km/h
7 Daniil Kvyat (Red Bull-Renault) 294.2 km/h
8 Jenson Button (McLaren-Honda) 277.6 km/h"
F1 testing analysis: Jerez speed traps expose Mercedes advantage - F1 news - AUTOSPORT.com