I have a 335i X drive M-Sport and love the exhaust note. Almost did the M3 but AWD is better for my heavy-footed wife. That thing can move though. At over 100K miles now it’s starting to dribble some oil but I’ve run it hard and had some fun with it.Yes, the 340i sounds great and has a Twin Scroll single turbo (basically 2 turbos in one housing). I have a M4 which actually has 2 separate turbos and is the worse sounding engine BMW ever produced IMHO. But it puts out 444 hp and 404 lb/ft
If Jeep could get anywhere near those numbers there would be no need for a NA V8.
Whatever the new engine ends up being in the JL, many will complain as some JK owners did about the JL, say it sucks, and point out all the early issues it has. When it’s all said and done I am sure it will be a more powerful and efficient engine and we will be stuck with the “older JL.” That is, until we get new ones again