IMSA

German manufacturers endured a rollercoaster Six Hours of The Glen – Porsche led in the rain but fell back after a late crash, BMW’s new duo stormed to a GTD Pro win, and Mercedes-AMG clinched a GTD podium.

IMSA’s annual high-speed dash through upstate New York is back. From the daunting Esses to the Boot’s tricks, Watkins Glen rewards nerve and tidy traffic work. Can Porsche extend its sprint edge, or will Cadillac’s home-track punch tell in six hours? Rain may stir plans. Bus Stop traffic waits soon.

Porsche’s win streak ended in Detroit after late drama let Acura through. BMW left frustrated. The streets bite hard, here’s the inside story from pitlane to podium.

Porsche, BMW, and AO Racing Porsche fight for position in a challenging Detroit IMSA qualifying. BMW locks out the second row. Porsche sets sights on strategy for Saturday’s race.

Get ready for the Chevrolet Sports Car Classic as Porsche and BMW lead the German charge in Detroit. Here’s what to expect from the German marques this weekend.