At the Toyota/Save Mart 350 at Sonoma, Ambrose led 35 laps, and held a two-second lead over Jimmie Johnson, but on lap 104, Ambrose turned off his car's engine to conserve fuel, but was unable to restart it.
Ambrose led 35 laps. This was at the Toyota/Save Mart 350 at Sonoma. Ambrose held a two-second lead over Jimmie Johnson. This was at the Toyota/Save Mart 350 at Sonoma. Ambrose turned off his car's engine to conserve fuel. This was on lap 104. Ambrose was unable to restart it. This was on lap 104.