Yolobus MCI 102-D3 CNG #777 load up and take off

Here's a Yolobus I don't see everyday or should I say this is my very first time since moving to NorCal that I've seen #777 which is S60G powered in the downtown Sacramento area during rush. It sounds a lot like the diesel Series 60 at idle but at take off is when you would tell this is definitely CNG. Enjoy the video!