The stutter followed by game crash has been an issue for me since the first week of the game. Since I run organized league stuff and build cars for them, I often change back and forth between cars several times to build them up and run test laps, so I always figured it was from doing that too much.
For the week after the December update the problem seemed to go away a bit, but then was right back to normal, and as I was typing this message my game crashed while trying to choose a car, but my game has restarted just fine and works like normal.
I've had the thing where it won't launch on the main splash screen, when I pushed the A button it would make the click noise then nothing would happen and it would just keep showing my home area car from different angles, but every time it has done that another restart fixed it.
The Senna GTR seems like it has the wrong sound too. Just a turbocharged, loud generic V8 for no reason when in real life its actually as quiet as a 720s but with way more grip and braking.
To be honest I wouldn't notice as the Senna GTR was nothing I ever paid attention to, but it's unsurprising.
They seem to have done a bit better job with ambient sounds and minor details this time around, but that's about it. Even aside from the cars that have wrong sounds, most of the other ones just sound very boring and "soft" or tame.
The C7R is still one of worst for me, it sounded fantastic in FM6 but had a bit of a downgrade in FM7 but still sounded okay, and now in FM8 it sounds so tame and muted. It's at least still big displacement V8 noise though, unlike the poor Sauber that has been completely ruined.
How did you get those cars?
Are you beta testing?
My man is living in the future.
You can't "get" them so you can't tune/level/upgrade them, but you can drive them as rentals in private lobbies still, they haven't fixed it since game launch. Dunno if they know/care about it, or if they would even be able to fix it.