IMSA has released the entry list for next weekend’s Prototype Challenge presented by Mazda season opener at Sebring, with 23 cars, including 12 LMP3 entries, set to kick off the new-look championship.

ENTRY LIST: Sebring

Four of the five active LMP3 constructors will be represented on the grid, headlined by the competition debuts of both the Norma M30 and Ave-Riley AR2, entered by Kelly-Moss Road and Race and Ave Motorsports, respectively.

Former Pirelli World Challenge GT Cup champion Colin Thompson will give the Norma its debut, with Paul Fix listed in the Ave-Riley.

The majority of the LMP3 grid, as expected, are made up of Ligier JS P3s, with nine of the Onroak Automotive-built prototypes entered.

It includes two-car efforts from JDC Motorsports (Joel Janco & Gerry Kraut), P1 Motorsports (Lonnie Pechnik & Juan Perez), as well as a single car from Extreme Speed Motorsports for Naj Husain.

While longtime Ave driver Doug Peterson will be at the wheel of a Ligier run by HP-Tech, Rolex 24 at Daytona class winners Performance Tech will have a Ligier and Ginetta LMP3 apiece, for Andrea Gutierrez and Alan Wilzig, respectively.

ANSA Motorsports, which was due to run an ADESS 03, has swapped to a Ligier for driver Matt Dicken.

The newly renamed Mazda Prototype Challenge (MPC) class, which will also run on Continental tires, sees an 11-car entry, all with Elan DP02 machinery.

It features entries from IMSA WeatherTech SportsCar Championship regulars JDC, Performance Tech and BAR1 Motorsports, along with other returning teams to the class.

A test session for Prototype Challenge series competitors at Sebring is scheduled for later this week, with official track action set to get underway on Wed. March 15, ahead of the pair of 45-minute races on March 16 and 17.