Gutierrez smashed the circuit lap record by almost 4 seconds, setting a 1:17.425. Watch below as the 27-year-old lapped the Sonoma track.
Video courtesy of Mercedes-AMG Petronas Motorsport
Bahrain International Circuit - Winter testing
Would you like to stay up to date with the latest Lewis Hamilton and Formula 1 news from GPtoday? Activate free push notifications and be the first to know!