They can't build enough of
They can't build enough of the GM twins until they open the third line, these two trucks are all about margins right now. It's the same thing that was going on with the F150 except GM is keeping initial supply low. Even the turbo diesel is only slated for 24k units and it's going to make lots of money for GM and it's dealers. I think that third assembly line will be going operational soon with GM announcing two special editions, midnight and trail boss plus the diesel.
It is impressive that Toyota can move that many Tocomas in its final model year, and I think they're going to be forced to add a diesel when they see the mileage that GM is going to be getting out of the 2.8. Have you guys seen what the powertrain engineers are saying they were able to do? 37mpg with a preproduction model, I'm expecting 33-35 official, and there's no way Toyota won't jump on that.