Lewis Hamilton tested how giving the blow on the table that you need to assault the leadership, in the first free practice of the GP of Mexico with a lot of work for everyone. The difficult track conditions, with very cold, led to the emergence of graining on all the cars, which forced the pilots to devote more laps than usual to try to catch temperature, thus, performance.
that is why many of the runners have taken their time with the composite media of Pirelli and not with the soft or the ultrablandos, that gave you a lot of problems because of the difficulty of putting them in competitive conditions.
The session even had to stop at the beginning, even if it was not for the cold but for a wing broken, the Felipe Nasr, that left quite a few pieces of carbon in the middle of the asphalt. The brazilian was one of the pilots who staged the ‘halo’ in this round.
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Behind Hamilton ended up on the table of times the duo of Ferrari, with Sebastian Vettel to just 8 hundredths from the time of Hamilton and Kimi Räikkönen behind. The finn was one of the runners that most people suffered from graining on his tyres, especially on the soft tyres that used to do their fastest laps. Nico Rosberg, the leader, he devoted the day to do different calibrations of the Mercedes.
In a session in which several pilots have exceeded the 30 laps, something very unusual for a FP1, Carlos Sainz and Fernando Alonso confirmed that are going to suffer this weekend. The Toro Rosso marked the 12th time and the McLaren, the 16th. The spaniard complained of excess traffic on the track, although this element affected all alike.
time Table Free 1 Grand Prix of México
| Pos. | Piloto | Dorsal | Equipo | Tiempo | Gap | Laps |
| 1 |  Lewis Hamilton |
44 | Mercedes | 01′ 20″914 | 0 | 34 |
| 2 |  Sebastian Vettel |
5 | Ferrari | 01′ 20″993 | +0.079 | 23 |
| 3 |  Kimi Raikkonen |
7 | Ferrari | 01′ 21″072 | +0.158 | 19 |
| 4 |  Sergio Perez |
11 | Force India | 01′ 21″200 | +0.286 | 23 |
| 5 | Nico Hulkenberg |
27 | Force India | 01′ 21″409 | +0.495 | 23 |
| 6 | Valtteri Bottas |
77 | Williams | 01′ 21″447 | +0.533 | 34 |
| 7 | Nico Rosberg |
6 | Mercedes | 01′ 21″673 | +0.759 | 32 |
| 8 |  Daniel Ricciardo |
3 | Red Bull | 01′ 21″727 | +0.813 | 27 |
| 9 |  Felipe Massa |
19 | Williams | 01′ 21″836 | +0.922 | 31 |
| 10 |  Daniil Kvyat |
26 | Toro Rosso | 01′ 22″215 | +1.301 | 29 |
| 11 |  Romain Grosjean |
8 | Haas F1 Team | 01′ 22″500 | +1.586 | 21 |
| 12 |  Carlos Sainz |
55 | Toro Rosso | 01′ 22″563 | +1.649 | 32 |
| 13 |  Marcus Ericsson |
9 | Sauber | 01′ 22″723 | +1.809 | 17 |
| 14 |  Max Verstappen |
33 | Red Bull | 01′ 22″877 | +1.963 | 10 |
| 15 | Esteban Gutiérrez |
21 | Haas F1 Team | 01′ 22″910 | +1.996 | 23 |
| 16 | Fernando Alonso |
14 | McLaren | 01′ 23″089 | +2.175 | 25 |
| 17 | Felipe Nasr |
12 | Sauber | 01′ 23″089 | +2.175 | 12 |
| 18 | Jenson Button |
22 | McLaren | 01′ 23″342 | +2.428 | 24 |
| 19 |  Kevin Magnussen |
20 | Renault | 01′ 23″556 | +2.642 | 32 |
| 20 | Esteban Ocon |
31 | Manor F1 | 01′ 24″083 | +3.169 | 30 |
| 21 | Jolyon Palmer |
30 | Renault | 01′ 24″097 | +3.183 | 35 |
| 22 | Pascal Wehrlein |
94 | Manor F1 | 01′ 24″350 | +3.436 | 28 |
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