Sells cars.
A dealer.
A person who repairs cars is called a "Mechanic".
A haberdasher is a person who sells men's hats.
Yes, "He sells cars" is correct.
A person can view a selection of Burago cars at a retail store that sells Burago cars or online. Some online sites where a person can view Burago cars are Amazon and eBay.
A realtor
An accountee is an applicant of credit whereas a car dealer is a person who sells cars.
Sales person
Milliner
A food seller!
Cloth sallesman ?