NASCAR Sprint Cup drivers Jeff Gordon, Jeff Burton, and Marcos Ambrose have completed the first half of a two-day tire test at Watkins Glen International, which has been altered to improve safety.
After rain prevented the drivers from the Goodyear tire test Tuesday morning, all three drivers spent four hours in the afternoon traversing the 2.4-mile layout.
The changes at Watkins Glen include the removal of gravel traps and grass, the installation of a SAFER — Steel and Foam Energy Reduction — barriers, and relocated guard rails.
The renovation project affects all series that race on the circuit and includes improvements to the inner loop and turns 9-11.
The drivers are scheduled to be back on the track Wednesday for more testing.

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