What kind of truck is this?

we are currently traveling in our '07 Freightliner Sportchassis and by the time we get home next month we she will have turned over 99,000 miles .... Mercedes MB900 motor with Allison T3000 6-speed automatic tranny .... the drive train has been bullet proof since day one but early on it did have some other issues which had to be dealt with .... once those were resolved it has provided good service .... its ride is exceptional as is its power .... towing fuel mileage about the same as our form Chevy 3500 D/A .... nontowing mileage about the same as towing mileage .... tires twice the cost of tires for our Chevy but don't last anywhere near as long .... handles better than the Chevy with a much smaller turning radius

Jim