Sulfur smell from the exhaust has been a problem time to time across several brands.
I seem to see it (so to speak) coming from low mileage cars.
I think cat converters tend to make the smell less once they’re “broken in”.
If you’re getting good MPGs and no check engine light then it would be just a minor nuisance… However,
Getting the smell of your cars own exhaust in the passenger compartment could be a sign of a serious problem.
Is it coming in other than through an open window?