Penske, Ganassi cars retain edge, but others gaining
The toughest stretch of the Indy Racing League schedule wraps up Sunday with the Firestone Indy 400 at Michigan International Speedway (ABC, 3:30 p.m. ET), the second-longest race of the IndyCar season.
The IRL has only been running at Michigan since 2002, but those four races only continued the fast, wacky and unpredictable tradition of USAC- and CART-sanctioned open-wheel races at MIS.
Thankfully, the IRL didn't replicate the abysmal mechanical reliability that marred ...
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