While factory teams have dominated the 24 Hours of Le Mans and the ALMS GT category in recent years, a trio of the top independent teams is expected to fight it out for the overall victory here at Petit Le Mans on Saturday.

Leading the way is the 2012 and 2013 ALMS P1championship team from Muscle Milk Pickett Racing Honda featuring drivers Klaus Graf.

The Indianapolis and California team has enjoyed great success in recent years, but is still seeking its first victory here at Petit Le Mans.Lucas Luhr and Romain Dumas.

The 2011 ALMS prototype champion Dyson Racing Mazda team is looking to celebrate its 30th anniversary in professional sports car racing with a big win here at Road Atlanta. The Poughkeepsie, New York-based team has its leader, Chris Dyson, back aboard and he is joined by Tony Burgess and Chris McMurry.

Adding considerable spice to the battle are the defending Petit Le Mans champions, the British-based Rebellion Racing Toyota team that features drivers Nicolas Prost, Neel Jani and Nick Heidfeld.

The presence of three strong experienced and successful teams pushes everyone to raise their game. Free of the big factory prototypes, they look to fight it out for bragging rights as the sport’s top independent team in this, the final American race for the current generation of P1 cars.

The Pickett, Dyson and Rebellion battle also includes the sub-plot of Honda, Mazda and Toyota rivalries. All three teams are Michelin technical partners.

Adding an unknown element to the mix is the DeltaWing prototype driven by Katherine Legge and Andy Meyrick.

The match is certain to produce a worthy champion over the 1,000 miles here on the 2.459-mile Road Atlanta circuit.