Indycar just released the following information. To my knowledge this is not open for public viewing.

NTT INDYCAR SERIES Drivers To Test Friday at Indianapolis Motor Speedway

Dixon, Newgarden, O’Ward, Rossi To Use Push-to-Pass System in Choreographed Session As part of preparations for the introduction of a new engine package in 2023, the 2.4-liter, twin-turbocharged V6 with hybrid technology, the NTT INDYCAR SERIES will host a four-car test Friday, March 26 on the Indianapolis Motor Speedway oval. Drivers will use the series’ Push-to-Pass system, which delivers increased power to the current 2.2-liter engine. In 2023, the new engine with hybrid technology will feature the ability of a 100-horsepower boost for use on ovals, as well as street and road courses. INDYCAR will help guide the hybrid Push-to-Pass simulation starting at 10 a.m., with choreographed group sessions lasting from 1-4 p.m. Drivers testing include six-time NTT INDYCAR SERIES champion Scott Dixon of Chip Ganassi Racing, two-time series champion Josef Newgarden of Team Penske, 2016 Indianapolis 500 presented by Gainbridge winner Alexander Rossi of Andretti Autosport, and 2020 Indianapolis 500 Rookie of the Year Pato O’Ward of Arrow McLaren SP.