What cars do mechanics say not to buy?

There is no single list of cars that all mechanics agree you should avoid. Mechanics often caution against vehicles with poor maintenance records, serious structural rust, flood damage, repeated overheating, or unresolved engine and transmission problems. Some specific model years and powertrains have known weaknesses, so research the exact combination instead of rejecting an entire brand. Older luxury cars and heavily modified vehicles can also be costly when specialized parts or labor are needed. Ask a mechanic familiar with the model about common failures, likely repair costs, and parts availability. Have any prospective purchase inspected and check whether major scheduled services are overdue. Avoid a particular vehicle when its condition, documented issues, or likely repair bills exceed what you can reasonably manage.