More manufacturers anticipated for 2016 United SportsCar Championship as series aligns itself with Le Mans rules.
Starting with the 2016 24 Hours of Daytona, the GT Le Mans (GTLM) class will compete under the new GTE specifications established by the Automobile Club de l'Ouest (ACO), the Le Mans 24 Hours organiser.
IMSA has also announced the GT Daytona (GTD) class will welcome full FIA GT3 specifications for all of its cars.
The Rolex 24 At Daytona is more than a race.
IMSA President Scott Atherton
IMSA hopes the move will attract more manufacturers to the series, while also increasing the performance of the GT cars.
"The debut of new cars in the GTLM and GTD classes, along with the first event in Daytona International Speedway's motorsports stadium, will add even more anticipation for one of the most prestigious events on the international motorsports calendar," said IMSA President Scott Atherton.
"The Rolex 24 At Daytona is more than a race, it's an event where fans can enjoy world-class sports car competition and witness the latest and greatest from some of the most prestigious high performance car manufacturers in the world.
"New GT cars and the addition of a completed DAYTONA Rising project will make next year's Rolex 24 a must-see spectacle."