2015 Lone Star Le Mans

The 2015 Lone Star Le Mans was the eleventh of twelve scheduled sports car races of 2015 by IMSA, and was the eighth round not held as part of the North American Endurance Cup.

[2] The race was held at the twenty-turn 3.426 mi (5.514 km) Circuit of the Americas in Austin, Texas on September 19, 2015.

Mazda Motorsports had two Lola B12/80 cars and Michael Shank Racing (MSR) entered one Ligier JS P2 chasis with Honda HR28TT twin-turbocharged 2.8-liter V6 engine.

45 Flying Lizard Motorsports Audi R8 LMS ultra was reinstated to the Tudor United SportsCar Championship after making its first appearance since the Laguna Seca round.

Regulations stipulated teams to nominate one qualifying driver, with the fastest laps determining each classes starting order.

IMSA would arranged the grid to put all Prototypes ahead of the PC, GTLM, and GTD cars.

Map of the Circuit of the Americas - Grand Prix Circuit
Circuit of the Americas (pictured in 2015) , where the race was held.