The Detroit Grand Prix in pictures

Acura

DETROIT, Mich.-You'd think IndyCar might give the teams a little downtime after the Indy 500. But just six days after its most important race of the year, the grid formed up again in the picturesque park of Belle Isle for the Detroit Grand Prix. For one weekend a year, a bumpy street circuit takes over the island's western tip, playing host to a veritable bounty of race cars.

There were the open-wheel IndyCars, but IMSA's Weathertech Sportscar Championship was also present and correct, supported by the gravity-defying Super Stadium Trucks and the flame-spitting Trans-Am brigade. When Acura invited Ars to come check it out up close and personal, it didn't take me long to book my flights to Motor City-particularly when the invitation came with a chance to interview the captain himself, Roger Penske.

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