This week’s IMSA Michelin Pilot Challenge race will feature the largest grid out of all series part of the ‘Super Sebring’ event, with 43 cars on the entry list for the second round of the season.

The Alan Jay Automotive Network 120 gets underway Friday at 12:05 p.m. ET with live coverage on IMSA.tv.

A total of 28 GS class cars headline the two-hour race, down from the 35 GT4 entries that took part in January’s season-opening round at Daytona.

While a number of one-off entrants including TRG, Ian Lacy Racing and Classic BMW are not present, both KohR Motorsports and Carbahn Motorsports have added additional cars for the event.

Alec Udell is set to share a third KohR Ford Mustang GT4 with DJ Randall, who started the season in the team’s No. 59 entry, while Mark Siegel and Tom Dyer are listed in a second Carbahn Audi R8 LMS GT4.

The pair of Multimatic Motorsports Mustang GT4s, meanwhile, feature all-new lineups in drivers from Ford’s NASCAR Gander Outdoors Truck Series program.

Ben Rhodes and Myatt Snider are set to share the No. 15 Mustang GT4, with two-time Truck Series champion Matt Crafton to team up with Grant Enfinger.

Fifteen TCR entries, meanwhile, are set to do battle, one more than Daytona, following the addition of a second JDC-Miller Motorsports Audi RS 3 LMS TCR for Mikey Taylor and reigning class champion Britt Casey Jr.

No other changes have been made to the TCR entry.

McLaren Slapped With 50kg Weight Increase

The Daytona-winning McLaren 570S GT4 has been given a considerable increase in minimum weight, in the latest round of the Balance of Performance adjustments by IMSA.

The British sports car will be 50kg heavier in Sebring, with a new weight of 1535kg, putting it on the same weight as the Mustang GT4, which remains unchanged.

Aston Martin’s new-for-2019 Vantage GT4, meanwhile, has been given a 45kg weight reduction along with a 4-liter increase in fuel capacity and adjusted ECU.

The only change in TCR comes with rear ride height adjustments for the Alfa Romeo Giuletta TCR, Honda Civic Type-R TCR and Hyundai Veloster N TCR.