I agree this is an important
I agree this is an important vehicle for GM.
The question is whether the Colorado will be small enough and fuel efficient enough. I do not think a mid-sized, 4-door pickup that can barely exceed 20 MPG will have much impact.
The Colorado needs to have "real" fuel efficiency. If that means it can't tow a 50 ft yacht up a cliff, so be it. Fuel efficiency is more important than towing capacity for this vehicle. People can always get a Silverado if ludicrous towing capacity is required.