A total of 40 cars are set for next weekend’s Advance Auto Parts Sportscar Showdown in the first headline event for the IMSA WeatherTech SportsCar Championship at Circuit of The Americas.

ENTRY LIST: COTA

The fourth round of the WeatherTech Championship season will again see a ten-car grid in the Prototype class, with no major changes since Long Beach, other than the revised lineup for the No. 52 PR1/Mathiasen Motorsports Ligier JS P217 Gibson, which sees ex-Audi LMP1 factory driver Marco Bonanomi make his class debut.

GT Le Mans sees a nine-car entry, with 17 GT Daytona entries set to do battle in Texas but with a few yet-to-be-confirmed lineups.

The No. 28 Alegra Motorsports Porsche 911 GT3 R sees Daniel Morad return, but without Michael Christensen, as the Porsche factory driver will be on FIA World Endurance Championship duty at Spa-Francorchamps that weekend.

TRG’s Porsche entry is listed minus Wolf Henzler, who moves to the No. 912 Porsche GT Team entry in GTLM to fill in for Kevin Estre, who will also be in Spa.

Pirelli World Challenge GTS front-runner Parker Chase is currently the only confirmed driver in TRG’s Porsche.

Risi Competizione’s planned expansion into GTD with a customer Ferrari 488 GT3 is not listed, with the team reportedly still waiting on the car’s arrival into the U.S.

Of note, Lone Star Racing will make its first start of the season with its new Mercedes-AMG GT3 for Mike Skeen and Dan Knox.

The Prototype Challenge class, meanwhile, returns to action after skipping Long Beach, with four cars entered, including to-be-determined drivers for the No. 8 Starworks Oreca FLM09 and No. 26 BAR1 Motorsports entry.

The two-hour and 40-minute race is set for Sat. May 6.