1991 Buick Century Q&A

1991 Buick Century Question: Reasonably priced, read less expensive tires I should buy?

Tires are old, was adviced to replace them by seller. I bought this car for 500.00 and so far so good. I will like to keep it as long as possible. Advice as to how to maintain in top shape will be highly appreciated. the sparks plugs and oil was changed and I can't remember what else. -
Answer 1
HAVE AN INSP DONE ON IT TO SEE WAHTS NEEDED SHOULD BE CHEAP AND HELPFULL -