A total of 43 cars will line up for the 12 Hours of Sebring later this month.
Round two of the IMSA Sportscar Championship follows on from January's Daytona 24 Hours, which was won by the Action Express Racing Cadillc squad.
Christian Fittipaldi, Joao Barbosa and Filipe Albuquerque will be looking to extend their championship lead with a victory in the season's second North American Endurance Cup race.
Sixteen entries are set to compete for overall honours in the Prototype category, including ten manufacturer DPi entries and six privately-run LMP2s.
Three Cadillacs – all of which received 10kg weight increases in the pre-event Balance of Performance – will be present, as will the usual two-car DPi entries from Nissan, Mazda and Acura.
The Wayne Taylor Racing Cadillic is the defending Sebring winner, with Jordan Taylor joined this year by full-time team-mate Renger van der Zande and IndyCar star Ryan Hunter-Reay.
Other BoP changes effectuated in the Prototype ranks include a 2L fuel capacity increase for the pair of Joest Mazdas, and a 1L fuel tank reduction for the Penske Acuras.
The largest category is GT Daytona with 18 GT3-spec runners, although the Daytona-winning Grasser Racing Lamborghini squad will not be present.
CJ Wilson Racing – the team run by former Major League Baseball pitcher CJ Wilson – is slated to make its IMSA Sportscar debut with a single Acura NSX-GT3.
The trio of Mercedes GTD entries will run with an extra 20kg as mandated by the BoP, but will also possess slightly larger fuel tanks, as will the two Lexus RCFs.
The GT Le Mans category features nine cars that are largely unchanged from Daytona, although Porsche has elected to run only two drivers in each of its 911 RSRs.
Patrick Pilet and Nick Tandy will share the #911, while Laurens Vanthoor and Earl Bamber are listed under the #912.
In the BoP stakes, BMW's pair of M8s will receive a 20kg weight break after the RLL squad struggled for pace at the season opener.
Both BMW and Porsche will also have their fuel capacities expanded by 2L.
Sebring will mark the first implementation of a new minimum refuelling time for all classes, which was put into place after controversy surrounding a penalty for the Land Motorsport GTD Audi crew at Daytona.
The Land car was adjudged to have spent around five seconds less time refuelling than its class rivals despite using a BoP-levelled refuelling restrictor.
The 66th 12 Hours of Sebring will take place on Saturday, March 17th.
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