Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Why aren't trucks wide enough? Jason question.

Isaac Zachary · 10-08-2023, 02:42 AM

The wheels have to be far enough out to make room for a wide enough bed. Making the whole vehicle wide to fit would likely increase air drag.
Fuel consumption rules are based off of wheel base width and length. So it would make sense to make a smaller truck and find ways to make the wheel base wider at the same time to make it easier to meet CAFE standards.

10-08-2023, 02:42 AM	#4 (permalink)
Isaac Zachary High Altitude Hybrid Join Date: Dec 2020 Location: Gunnison, CO Posts: 2,075 Avalon - '13 Toyota Avalon HV 90 day: 40.45 mpg (US) Prius - '06 Toyota Prius Thanks: 1,128 Thanked 584 Times in 463 Posts	The wheels have to be far enough out to make room for a wide enough bed. Making the whole vehicle wide to fit would likely increase air drag. Fuel consumption rules are based off of wheel base width and length. So it would make sense to make a smaller truck and find ways to make the wheel base wider at the same time to make it easier to meet CAFE standards. __________________