What new buses? The only new thing in all the current buses are the smart fare boxes, one of which is shown in the photo. As far as I know, only the shuttle to Union Station is GPS equipped. If there are any new buses or buses equipped with GPS, they are most likely in the Hartford division of CT Transit, they always seem to get new things ahead of New Haven.

@Pat the drivers have told me that GPS is now on all the busses but it's not exposed to the public

Real-time bus information for CTtransit’s New Haven Division is now available.

Real-time information for vehicle locations and arrival/departure predictions is made available for free through data feeds that developers can use to create applications for CTtransit’s New Haven customers. For all routes in the New Haven area, this real-time information is currently available on “Transit ,” a comprehensive transit application available for iOS and Android devices. When using “Transit ,” riders can swipe left or right on each route to show different directions of travel. The information will go live for Google and Apple Maps and other consumers of the free CTtransit data feed as developers incorporate the data.

Details https://www.cttransit.com/news/real-time-information-new-haven-cttransit-buses-now-available