SONOMA, California (March 25, 2025) – GMG Racing begins another season of multi-tiered SRO America competition this weekend at Sonoma Raceway where four GMG Racing entries across four classes in three different racing series compete in the season-opening race weekend. The GMG Racing quartet includes full-season efforts in the featured SRO GT World Challenge America powered by AWS and the SRO GT America powered by AWS series as well as two entries in the inaugural race weekend of the debuting SRO McLaren Trophy America series. All competing series this weekend at Sonoma contest twin Saturday and Sunday races on the 2.52 Sonoma “Wine Country” road course. (more…)