Sebastian Vettel topped the second practice session for the United States Grand Prix, giving a far more accurate picture of the competitive order after a shortened FP1.
The German was just a tenth quicker than team-mate Mark Webber, whilst the Mercedes pairing of Nico Rosberg and Lewis Hamilton were third and fourth.
Kimi Raikkonen stand-in Heikki Kovalainen impressed with the fifth fastest time of the afternoon to put him two tenths ahead of Romain Grosjean in eighth.
The Ferrari’s were a lowly tenth and 12th, with Fernando Alonso leading Felipe Massa.
FP2 Full Times – 2013 United States Grand Prix:
| # | Driver | Team | Time | Gap | Laps |
|---|---|---|---|---|---|
| 01 | S. Vettel | Red Bull | 1:37.305 | 35 | |
| 02 | M. Webber | Red Bull | 1:37.420 | 0.115 | 37 |
| 03 | N. Rosberg | Mercedes | 1:37.785 | 0.480 | 38 |
| 04 | L. Hamilton | Mercedes | 1:37.958 | 0.653 | 38 |
| 05 | H. Kovalainen | Lotus | 1:38.073 | 0.768 | 41 |
| 06 | E. Gutierrez | Sauber | 1:38.229 | 0.924 | 40 |
| 07 | N. Hulkenberg | Sauber | 1:38.254 | 0.949 | 40 |
| 08 | R. Grosjean | Lotus | 1:38.255 | 0.950 | 33 |
| 09 | J. Button | McLaren | 1:38.269 | 0.964 | 34 |
| 10 | F. Alonso | Ferrari | 1:38.461 | 1.156 | 33 |
| 11 | A. Sutil | Force India | 1:38.719 | 1.414 | 31 |
| 12 | F. Massa | Ferrari | 1:38.938 | 1.633 | 37 |
| 13 | S. Perez | McLaren | 1:38.941 | 1.636 | 31 |
| 14 | D. Ricciardo | Toro Rosso | 1:39.246 | 1.941 | 28 |
| 15 | P. di Resta | Force India | 1:39.410 | 2.105 | 34 |
| 16 | V. Bottas | Williams | 1:39.512 | 2.207 | 37 |
| 17 | J-E. Vergne | Toro Rosso | 1:39.579 | 2.274 | 36 |
| 18 | P. Maldonado | Williams | 1:39.784 | 2.479 | 33 |
| 19 | C. Pic | Caterham | 1:40.376 | 3.071 | 39 |
| 20 | G. van der Garde | Caterham | 1:40.563 | 3.258 | 35 |
| 21 | M. Chilton | Marussia | 1:46.226 | 8.921 | 31 |
| 22 | J. Bianchi | Marussia | 1:47.009 | 9.704 | 20 |
