Keep in mind this is a meta-analysis using data published in papers that are up to 30 years old and from overseas including China, then applying it to California's carcinogen list (prop 65) and California commute times.
I am sure a followup study will be done to see if this is actually a problem in the USA in 2021.
Edit: I found this news article from 2003 discussing the issue of carcinogenic new car smells and how manufacturers were trying to eliminate the the dangerous smells while simulating what consumers expect a new car should smell like:
I am sure a followup study will be done to see if this is actually a problem in the USA in 2021.
The article is published here (Open access) : https://www.sciencedirect.com/science/article/pii/S016041202...
Edit: I found this news article from 2003 discussing the issue of carcinogenic new car smells and how manufacturers were trying to eliminate the the dangerous smells while simulating what consumers expect a new car should smell like:
https://www.caranddriver.com/features/a15133792/new-car-smel...