accelerator

aggressive

approach

approaching

automobile

beep

bike

bus

cacophonous

car

circle

cross

crossing

diesel

drive

driving

engine

exhaust

fast

fuel

gasoline

highway

honk

hoot

idle

italy

loud

loudness

modern

motor

motorcycle

noise

pass-by

passby

putt

putter

revving

road

roaring

rotary

rotunda

roundabout

running

scooter

street

throttle

transport

transportation

truck

vehicle

pass by

roar

run