One caught fire a few month back in Edinburgh. Think some were sold to Inverness Council.

First Bus also had a number of them in Essex and Berkshire, they were withdrawn due to a concerning fire on one of their vehicles in Essex.
First Berkshire Example - https://www.flickr.com/photos/gjm-photog...868404348/
First Essex Example - https://www.flickr.com/photos/gjm-photog...213920306/

The Electric ones in Harrogate were sold as Volvo 7900e, the chassis on these is Volvo BE (Battery Electric) which has been replaced by the BZL range. Only Harrogate, Stagecoach West Scotland got these for normal service, one was sold to Ireland for use on a hotel shuttle at Dublin Airport whilst a handful are on car park duties at Birmingham Airport, there was a demo which has disappeared. Harrogate got rid of their examples, whilst Stagecoach continue to use theirs at Kilmarnock.
Stagecoach Example - https://www.flickr.com/photos/gjm-photog...2220281311
Harrogate Example - https://www.flickr.com/photos/gjm-photog...0610324286

Ironically some of the examples for Lothian passed through Volvo Bus and Coach at Washington for their PDI having arrived via Port of Tyne.
Here is one example, no ID sadly. https://flickr.com/photos/gjm-photogenic/51780793351