By alley - Sep 17, 2017, 10:22 PM ET

RACER video: Roger Penske on winning the 2017 IndyCar championship

Roger Penske speaks with RACER's Marshall Pruett moments after watching his young American driver

Josef Newgarden win the 2017 Verizon IndyCar Series championship

at Sonoma Raceway.

"Investment pays off, and that's what it did today," he said.

roger penske

josef newgarden

indycar series

sonoma raceway

2017 indycar championship

IndyCar

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