what is tundra double grade mean as far as
Prior to 2007 it is the full size 4 door pickup. From 2007 on the double cab is a 4 door but the back doors and seat are a bit smaller. Still adequate for adults but not nearly as big a the crew cab 4 door.
Search Toyota Tundra Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Toyota Tundra Experts