Honda has hinted that its years as IndyCar's sole engine supplier may have left it under-prepared for the intensity of manufacturer competition after losing another manufacturers' title to Chevrolet. The 2015 IndyCar season, which concluded last month, was the first in which the manufacturers developed their own aero kits as well as engines, and Chevrolet emerged dominant. Chevrolet had a fourth straight title secured before last weekend's race at Sonoma, and became the first IndyCar manufacturer to win both the manufacturers' and drivers' titles as well as the Indy 500 in the same season. Its teams also won 10 out of the 16 races, and achieved a clean sweep of pole positions for the...
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