Ford 2007 Ford E-350

Thoroughly inspect for rust on the frame, rocker panels, and undercarriage, especially if imported from northern states.

Check transmission fluid condition and service history; be wary of signs of slipping or harsh shifts, particularly if used for heavy towing.

Listen for ticking sounds from the engine (exhaust leaks or spark plug issues) and ensure a smooth idle.

Verify the functionality of all doors, locks, and windows, as these are common wear points on commercial vehicles.

Opt for gasoline V8/V10 engines over the 6.0L Power Stroke Diesel unless there's documented evidence of comprehensive reliability upgrades.

Factor in significant fuel costs, as these vehicles are heavy and have large, less efficient engines.