I'll start a discussion of GT7 with a hilarious update. A recent update, 1.49, was supposed to improve GT7 physics, namely with suspension and tires. It turned out to make a major difference, but in a terrible way. It completely broke the game, causing cars to float and bounce around in ways that have to be seen to be believed. Read up on it in links below, but definitely watch some of the clips.
https://www.carthrottle.com/news/new-gran-turismo-7-physics-seem-be-having-some-teething-issues