BimmerWorld Shakes Up Lineup Amid Postins Retirement

Photo: BimmerWorld

BimmerWorld will head into the upcoming Pirelli GT4 America season with revised lineups in its two BMW M4 GT4 EVOs, following the retirement of longtime driver Charlie Postins.

Team owner/driver James Clay will continue in the Am class but with co-driver James Walker Jr., who moves over from the sister Pro-Am entry.

Walker Jr., meanwhile, has been replaced by series newcomer Michael Petramalo, who will pair up with team veteran Tyler McQuarrie in the re-numbered No. 38 BMW that will continue in the Pro-Am ranks.

Postins and Clay (pictured above) won their third Am class title in the last four years in 2025, which was highlighted by four class wins.

The Virginia-based team enjoyed a standout outing in the three-hour Lone Star Enduro at Circuit of The Americas, which saw victories in both Pro-Am and Am.

The GT4 America season kicks off at Sonoma Raceway on March 26-28.

John Dagys

John Dagys is the founder and Editor-in-Chief of Sportscar365. Dagys spent eight years as a motorsports correspondent for FOXSports.com and SPEED Channel and has contributed to numerous other motorsports publications worldwide. Contact John