Weichai is one of Ferrari's sponsor, a Chinese compay, they specialises in the research and development, manufacture and sale of diesel engines. Chai in Chinese meason diesel/firewood.
"Kimi is in and the screens surround the car immediately. I've noticed there is a specific engine rev procedure for the SF15-T before it is switched off: two bursts, a pause and then a longer burst, then off."
1. Räikkönen Ferrari SF15-T 1:25.011 21 Medium 2. Hamilton Mercedes GP W06 1:26.568 +1.557 37 Medium 3. Verstappen Toro Rosso STR10 1:27.423 +2.412 28 Soft 4. Grosjean Lotus E23 1:29.522 +4.511 8 Medium 5. Kvyat Red Bull Racing RB11 1:37.195 +12.184 8 Intermediate 6. Ericsson Sauber C34 1:37.533 +12.522 21 Hard 7. Massa Williams FW37 1:46.701 +21.690 4 Medium 8. Button McLaren MP4-30 No time 1 Development tyre