Hello guys, I'm here because I just had I think the same problem.
I have a 350 Sport produced in june 2020, and I'm Italian...
The car has 22k km. The break-in was done flawless, it had the first 2000 km check. I've done about 10 trackdays in these two years. Services every 7000 km, exact engine oil used as user's manual suggests... Full stock car. Always warmed up before going to 7000 rpms, always cooled down after 3-4 laps...
I used most of the time 95 RON fuel, only during trackdays I put 100 RON.
So one day of last july 2022, about 500 meters from home, I heard from engine bay a little bang and it started to run bad, not balanced, the MIL came up.
So I took it to dealer and after a few days the response was: piston failure...
Now I'm still waiting news and what will Lotus do to fix this big problem.
I really don't understand what concerns Italy with these failures...
Not sure, but I thought of the KOBE STEEL scandal exploded on 2017, but my car was built on june 2020 (and delivered on september 2020) : https://www.reuters.com/article/us-kobe-steel-scandal-ceo-idUSKBN1GH2SM