I have a Cascadia, I work for Sysco, its set at 57mph, no sat radio, CD though, pwr windows cruise, pwr mirrors, heated mirrors, got 34,000 miles without an issue what so ever, its got a Detroit in it, uses the DEF, its a full auto 6 speed, our shuttle drivers drive mine at night and regularly pull back 2 42 foot trailers and gross up to 90,000 lbs, they say they can shave 10 min off a 120 mile run loaded, over the same set up in a International 9200 with a manual 10 speed set at 62 mph, its all about pulling the hills they say, these Cascadias really pull like they should, I love mine, I don't care if I ever touch a shifter again, they have made huge strides in the auto transmissions since the first one I drove in a KW at Fedex Freight.