1) Car classification 
A cyclecar was a type of small, lightweight and inexpensive car manufactured mainly between 1910 and the late 1920s. Cyclecars were characterised by their use of basic materials and sometimes fragile engineering and were largely contrived to fill a gap in the market between the motorcycle and the car. Their demise was largely the result of product...
a light automobile, open like a motorcycle but having three or four wheels.