If you look at the 2021 Wayfarer, think you will find the OOOC has increased because of materials used in the flooring. I know when I removed the cab window blinds, over cab bunk cushions [which I will never use] rear queen bed extensions and one of the two tables, gained 225 lbs OOOC on my 2020 which has the big screen MBUX navigation, information and entertainment system standard. All Wayfarers have the heaver diesel gen sets which run off the main fuel tank.
Looked at both Tiffin and Winnebago products and decided the better materials and construction on the Wayfarer was worth the slightly less OOOC. If you are ordering a new one or buying a used one, you can call Trent Tiffin directly and ask him any questions you may have.
My advice is to look at both models and make up your own mind and what type of quality and compromises you are willing to accept. Also go on the Wayfarer facebook forum and note how owners talk about them.
Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.