Something else I forgot to mention is the cab length on pickup trucks. Most people do not realise that a MDT cab is shorter than a pickup.

The regular cab Ford Super Duty pickup has a BBC of 10 feet. For comparison the new style GM C-4500/5500 is 105". That is 8.75 feet. Yet it's competition the Ford F-450/550 is almost 1 1/2 feet longer because it uses the Super Duty Pickup cab.

Chevy and Dodge pickup cabs are similar in length.