|Seat Model||AMSECO InSight|
|# of Seats||39|
On November 8, 2004, the Chicago Transit Board approved the purchase of 20 model DE40LF diesel-electric hybrid buses from New Flyer of America, Inc. The order was split amongst two hybrid technologies: GM-Allison parallel hybrids (to be numbered the 800-series) and ISE-Siemens ThunderVolt series hybrids (to be numbered the 900-series).
With the exception of a roof-mounted battery pack, the buses are aesthetically identical to CTA’s 1000-series D40LF diesel buses.
The first GM-Allison parallel hybrid was put into service during December 2006, with delivery continuing in early 2007.