Wow. I'm also coming from a 2021 M3LR w/ AB and had a 2015 BMW 335ix and a 2017 340ix with the amazing B58 engine! I agree that the M3LR is nice but is anything but refined.
The 2024 MP3 may finally be the car that has enough performance for me to keep the car for more than 5 years with no regret. Any car that can pull off 0-60 in under 3 seconds and is priced $45k brand new after rebate is in rarified air.
As for enjoying all that power, I have some single lane curved roads near me that are nearly deserted at night and I often go for midnight runs there. I only really go about 7/10s but that is plenty fun while not attracting much attention due to lack of engine noise and cops have nowhere to hide. A buddy of mine with a 2021 Civic Type R also does the same after his wife and kids are asleep. The lengths some of us have to go to just to enjoy our car is crazy!