What is the process of eliminating uncomfortable vibrations coming from the surface of the road called?

Damping is the motion of cushioning the vehicle's body movements in order to smooth the ride over bumpy roads and eliminate uncomfortable vibrations coming from the surface of the road.

Technical auto terms simplified - What is Curb weight with respect auto sector.

Curb weight is the weight of an empty vehicle, without cargo and driver and passengers, but including maximum amounts of fuel, oil, coolant and standard equipment, including the spare tire and tools. In the EU legislation, curb weight means the cars has to be weighed with the reservoir filled at 90%, a 68 kg driver, 7 Kg of luggage and all the other fill ups made.

Auto technical terms made easy - What is the difference between Coupe and Sedan style of design with respect to cars.

COUPE
A coupe (or coupé) is a two or four-seater vehicle with a fixed roof and only two doors. There is no globally accepted official definition for the term though. According to SAE (Society of Automotive Engineers) standards, a coupe is a fixed-roof automobile which has less than 33 CuFt (approximately 934 liters) of interior volume. Any car with a greater interior volume is technically called a two-door sedan, not a coupe, even if it has only two doors.

SEDAN

The sedan is the most common configuration of a modern automobile. Sedans usually have four doors, although the term can be used to describe a two-door body also. Most of them have a three-box configuration, but two-box bodies are also common, mostly in Europe.

Common term related to automobiles - What does it mean when someone says "third brake light", what is the use of CHMSL.?

Center high-mounted stop lamp (CHMSL) - An extra rear brake lamp that's placed high inside or outside the vehicle, designed to give tailgating drivers an additional reaction time for avoiding a rear collision. The "third brake light" - the way it's sometimes called - is using LED technology on most vehicles.