Plymouth Citybus has a Dennis Trident

I don't know if I am the only person in Plymouth that doesn't know this but today I was on a bus going past the Plymouth Citybus depot and I was looking in the right side of the depot. In that part of the building was one of the ex First Plymouth Park and ride Dennis Trident Plaxton Presidents double doors which ran the route before we got the Dennis Enviro 400s. I am not sure of the fleet number. It still has retained the First livery and its second door. Maybe this is a new leaf in Plymouth Citybus's book and we will see the introduction of some low floor double deckers. Only time will tell.