Good news, but ain't much. I want 40+ mpg. Toyota could easily get this by buying VW's 2.0 liter turbo diesel and dropping it into the 1995-1999 Tacoma bodies. Would yield 45+ mpg, as the base body weight of that Tacoma model was a little less to a little more than 3,000 #. If the 2.0 liter were dropped into the present 3,500 # Tacoma, the mileage would still be about 39 mpg, as it's only a little less than 10% heavier than the VW Jetta that does 45-49 mpg on the highway and about 41 overall.
Ralph