Penske also returned to IMSA in 2017 with Acura and later switched to lead Porsche's GTP program, which won the 24 Hours of Daytona and the GTP championship last year. Like Brown and McLaren ...

IMSA president ... drive the Acura ARX-06 entry of his father Wayne Taylor. Braun, De Phillippi and Taylor are the only three American, full-season drivers out of 18 regulars in the GTP class.

As HRC becomes more involved with Acura's IMSA campaign, Meyer Shank gets off to a great start in the Rolex 24.