Most
big engine
fastest slowest dynamic static mighty weak big engine small engine nimblest economical gluttonous ecological cleanly ecological dirty heavy lightest longest shortest widest narrow highest lowest air anti air big wheel small wheel big brakes small brakes big clearance small clearance
among
Buses
Trucks Buses Multisection buses 2-floor buses
all time
before 1920 1920-29th 1930-39th 1940-49th 1950-59th 1960-69th 1970-79th 1980-89th 1990-99th 2000-09th 2010-19th mosts/period/2020-25 present time all time

AEC Regent I London Transport (H26/30R) '1937

engine volume

AEC Regent I London Transport (H26/30R) '1937

7,700cc

AEC Type NS '1922–????

AEC Type NS '1922–????

5,100cc

WheelsAge.org '2005–pr.