Hmm.. I think Preve also got the burning smells issue
The smell in Preve is only in new cars. It was the various oil and greases heating up and burning off. There are gone after 5,000 km or 10,000 km or so.
I'm one of the earliest Preve owners and in my case, the burning smell was gone after a few thousand km. Currently 2 years 2 months and 56,000 km on my Preve CFE.