by Curb feelers – this term is only familiar to those who are genuinely ‘in the know’ about retro and tuning. To the average motorist, they are unknown except for their visual resemblance to whiskers, which is why many call them car whiskers. 
Curb feelers (also called curb indicators) can be found today on various types of lowered Soviet cars and other retro vehicles. So, why are they needed and what is their role? 
The first thing to say is that these are not whiskers or antennas.
Curb feelers first appeared on American cars back in the distant ’50s and ’60s. At that time, they were a sort of analog to modern… parking sensors! Yes, yes, these whisker-like wires were designed to warn of collisions during parking. 
Essentially, a curb feeler is a spring or rigid wire located on the lower part of the car near the wheels.
When approaching the curb (or curb, depending on the area), they emit a ‘vibrating’ sound, thus warning the driver of the proximity of an obstacle. 
And do you know what those horns and buckets on the roofs of expensive cars are?
