when i bought my new psd i test drove the durmax first and i thought it had alot of power but there were no room in the back seat in the crew cab and the front seats are closer together than the f-250 but any way when i test drove the 6.0 psd it had way more power and much bigger inside i was looking at a gmc 2500 4x4 duramax same options as the f-250 i was looking at and the gmc was msrp at 49,000 and the super duty was 44,000, and the fords look like they can take more abuse and they look much better