"However, its prototype categories have struggled to reach acceptable numbers following Audi’s withdrawal from P1 competition in 2009 and the end of Porsche and Acura’s factory programs. As a result, both P1 and the recently relaunched cost-capped P2 categories have almost exclusively featured customer entries.
Having signed a new one-year licensing contract with the ACO late last year, it’s understood the ALMS had renewed its agreement with the Le Mans organizers for one additional year in June.
Established one year after the ALMS in 1999, GRAND-AM grew out of the roots laid by the U.S. Road Racing Championship (USRRC) and featured the Rolex 24 at Daytona as its premier race and annual season kickoff.
While having a strong influence from the onset, GRAND-AM was acquired by NASCAR Holdings in 2008 and has operated under the leadership of executive vice president Jim France through its 13-year history.
The series has typically embraced privateers through its two categories, although receiving support from manufacturers such as Chevrolet, Ford and BMW in the premier Daytona Prototype ranks. No fewer than a half-dozen automakers are represented in GT, with a third category, GX, is scheduled to be added next year for experimental machinery.
Despite having been rival series since the onset, there has been a significant crossover between manufacturers, with Chevrolet supporting programs in both DP and ALMS GT, along with Ferrari, Mazda, Porsche and other marques and drivers that participate in both championships.
Like the ALMS, GRAND-AM’s prototype component has seen a recent drop-off of entries, but has typically strived, notably with the introduction of new GT3-based cars adapted to Rolex Series’ GT category.
SPEED.com will have more on this developing story as it breaks."