Codes :

Chassis types :
A805 = Mercedes 805 bus chassis, automatic gearbox
 AL = Optarte Alero
B7RA = Volvo Bus 7 litre rear engine chassis, automatic gearbox
B10M = Volvo Bus 10 litre mid engine chassis, manual gearbox
B10MA = Volvo Bus 10 litre mid engine chassis, automatic gearbox
B12B = Volvo Bus 12 litre back engine chassis, manual gearbox
DA = DAF Bus
DLD = Dennis Low Floor Dart
LO = Leyland Olympian
LT = Leyland Tiger
M611 = Mercedes 6.84m Sprinter low floor, OM611 2.151ltr, MB5 automatic gearbox
M805 = Mercedes 805 bus chassis, manual gearbox
MCW = Metro Cammel Weyman Metrobus, automatic gearbox
NAT = Leyland National
OEX = Optare Excel
RM = Renault Master
SCN = Scania
609D = Mercedes 609 bus chassis
VO = Volvo Olympian

Body types :
BKF = Berkhof
CAE = Salvador Caetano
DOR = Dormobile
IRZ = Irizar
MLF = Mercedes Low Floor
NEO = Neoplan
PLX = Plaxton
RH = Rohill Harrier
VAN = Van Hool
RB = Reeve Burgess
    
Hnn nnR = Highbridge, lower deck seats, upper deck seats, rear engine
FnnM = Forward control, single deck seats, manual transmission.
FnnR = Forward control, single deck seating capacity, rear engine
NnnF = Normal control, single deck seats, front engine
NLnnF = Normal control, low floor, single deck seats, front engine
FLnnR = Forward control, low floor, single deck seats, rear engine

Coach seating and specification :
nn = nn seats, standard coach
nnE = nn seats, Executive (toilet, recliners, hot drinks &ct.)
nnAC = nn seats, Executive with
Air Conditioning
PUL = Pullman (Premier Select) variable seating, tables, full galley, audio/visuals, computer ports,  phone power, air conditioning, climate air heating, and sundry other benefits
D = Disabled access