https://sportscar365.com/imsa/iwsc/s...rom-lmp2-cars/
“I’m expecting the LMP2-spec cars to be very fast,” Sharp told Sportscar365. “With the lack of the long straightaway, it’s really going to appeal to a car that’s 100 pounds lighter than everybody.
100 pounds = about 45kg
Anyway considering that nissan gtr engine is in the range of >620Nm for most of the low-mid rpm range; basically almost +100Nm than torque peak of gibson engine; guess is better to have a slightly heavier but balanced car IMHO.
BTW this season nismo tried to introduce lighter parts for the ligier-ESM engine but wasn't a great move.... they came back to heavier but more reliable old parts.
Anyway, about 2019 season, after running and winning in main P class for years, it's weird see them in lmp2 class just to be the best of the rest.