Not every Kei truck has the same specs. Kei truck refers to a number of different brands of truck and most offer different length beds. This is NOT a 6.5 foot long bed. The Chevy has a 5.5 foot bed. Put a ruler up to both and you’ll see the Kei truck bed is shorter.
Edit: down voted for stating facts about Kei trucks. This is definitely a place for reasonable discussion.