We are getting a bunch of CNG Kenworths here in Denver and looks like I will get one in the next few days. Right now I'm running a single axle International which is nice, but I like the idea of an air ride, twin axle, newer truck. However, it's an autostick, and there is no back window. It is blocked by CNG tanks. I've heard they lack some power (so do the new Mack and KW diesels), and they take awhile to get going from a stop. How are they to back without a clutch to control the speed? Talked to a guy with a autostick Freightliner and it was a bear to back up. Went too fast and couldn't control the speed. Let me know what you think if you have driven one?