[Number 3]

We'll have to wait and see how efficient small diesels are. If it's a 3.0L then that will essentially be car engine applied to a pickup. I think that is the same one they are putting in the Jeep.

But what the diesel will have is HUGE price tag. I'll predict $5,000. Throw in the need to add DEF every 5,000 miles or so and you may not have a package that is an obvious choice.

Count the fact that diesel is usually more expensive in the U.S. and you may not have a lot of takers.

It will, however, be the right choice for some. I'll be very interested to see the volumes and pricing. Maybe GM has that answer waiting in the wings.