Considering a '17 3500 Ram

I have a base model 2015, its a great truck. The exhaust brake is fantastic, my regular engine has plenty of power so your HO will be even better. Yes, there is rear heat under the front seats and rear AC with adjustable vents between the front seats. The Mega cab is nice, as the seats can recline to make it more comfy for passengers and there is a lot of room behind the seats for storage.

I really like my truck. DEF is super easy to use and lasts quite a while. Mileage around town is 16-17 (empty) and 21-22 highway (empty).