40521-7 SN11BNL/E/D/A, SN11BMZ/V/U
As part of Diamond Bus's acquisition of the Midland
Classic operation, seven Alexander Dennis Enviro400
double-deck buses joined the company's expanding
Midlands fleet. The vehicles had been built new for
FirstGroup's London operations and entered service in
April 2011. Constructed to Transport for London
specifications, the buses featured dual entrance and
exit doors and were configured to seat 68 passengers
(H41/27D). In June 2013, FirstGroup sold its London bus
operations to Tower Transit, with these seven Enviro400s
included in the transfer. By 2018, all seven vehicles
had transferred to the Midland Classic fleet. Before
entering provincial service, the centre exit doors were
removed to better suit operating requirements outside
London, reducing the seating capacity slightly to
H41/26F. The buses were subsequently repainted into
Midland Classic's distinctive red and yellow fleet
livery, in which they remained until the company was
acquired by Diamond Bus. Their transfer to Diamond Bus
represented another useful addition of modern, low-floor
double-deck vehicles to the expanding Midlands fleet,
allowing the company to strengthen capacity on a number
of its busiest services while continuing the operation
of well-maintained vehicles inherited through the
Midland Classic acquisition.
| Registration Number | Fleet Number | Vehicle Type | Body type | Seating Capacity | Date into Service | Current Allocation |
| SN11BNL | 40521 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
| SN11BNE | 40522 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
| SN11BND | 40523 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
| SN11BNA | 40524 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
| SN11BMZ | 40525 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
| SN11BMV | 40526 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
| SN11BMU | 40527 | ADL E400 | Alexander Dennis | H41/26F | July 2018 | Burton on Trent |
40528/31/2 SN11BRV/SU/RZ
40528,
40531 and 40532 were part of a 13-vehicle order in 2011
for Alexandra Dennis E400s with H41/26D dual door
seating configuration the vehicles entered service with
First Capital East Limited and they entered service from
Lea Interchange bus depot in June 2011. The Lea
Interchange bus depot and vehicles were owned by First
Capital East Limited but operationally part of First
Capital North Limited and these were acquired by the
Transit Systems Group on 21st June 2013. All 13 vehicles
from this batch including the 3 now with Diamond Bus
passed to Centrewest (No.1) Limited. Centrewest (No.1)
Limited was soon renamed Tower Transit Operations Ltd on
23rd June 2013. The vehicles remained in service in
London until May 2021 when they were sold to Ensign Bus
Company Limited (a Purfleet based dealer). Ensign
altered the seating and removed the centre door so are
now configured as H41/31F and the vehicles were sold to
Belle Vue (Manchester) Limited (a Heaton Chapel based
operator) in September 2021. They are part of the same
batch of vehicles at Burton on Trent depot that had been
acquired by Midland Classic The vehicles were mainly
used on TfGM school services so were painted into a
yellow livery (not quiet the shade of yellow that is now
used by the Manchester Bee Network). When the school
services the vehicles were used on were retendered as
part of the bus franchising process in Manchester Belle
Vue lost the contracts to Diamond Bus North West. As
part of the franchise process Diamond bus acquired the
vehicles and they were soon repainted into standard
Diamond bus blue livery as the TfGM franchises don’t
require school buses to be painted in the Bee Network
Yellow. All TfGM contracts do however have a 15-year age
limit for buses and as these vehicles have reached that
age there was a need to replace them so the 5 vehicles
that need replacing were swapped for Wrights Streetdecks
3 from Redditch depot and two from Preston Bus.
| Registration Number | Fleet Number | Vehicle Type | Body type | Seating Capacity | Date into Service | Current Allocation |
| SN11BRV | 40528 | ADL E400 | Alexander Dennis | H41/26F | 30th July 2026 | Redditch |
| SN11BSU | 40531 | ADL E400 | Alexander Dennis | H41/26F | 3rd August 2026 | Redditch |
| SN11BRZ | 40532 | ADL E400 | Alexander Dennis | H41/26F | Not yet in Service | To be Redditch |