My girlfriend has a company duramax crew cab. The thing is AWSOME!! I've never owned a diesel because of the typical things....like the glow plug thing, they're loud, smell, you can't really go too fast, etc etc etc. A few months ago a bunch of us towed to Havasu from Southern cali. There was about 10 of us and most of the guys had the power strokes. I was towing a 312 Formula which has to weigh like at least 7k right? Anyway the thing towed it like nothing was back there! I sh!t you not we were doing 90 on the freeway!! The powerstrokes just couldn't keep up with us. This truck is about 1/2 as loud as other diesels (it's actually quite quiet) in the morning you have to wait about 5 seconds for the glow plugs then for the rest of the day you don't even need to wait for them. The truck hauls ass like I said. I've had it up to 100 before and it just cruises. It is a very nice truck all together and I think the next truck I buy is going to be a crew cab duramax. Just for info I do like the powerstrokes they are sweet, and the f350 super duties are bad ass! but the new technology in the duramax really shows.