Paulo
The spiral burners at one time were very popular, and even universal at one time in the UK, I do not believe they were very popular in mainland Europe at all.
They can be traced back to the 1930s or so, when there might have been a single "radiant" ring (as we called them) along with a solid plate, this was often an extra cost option, over having all solid plates.
Very often the broiler would be combined with a larger rectangular solid plate with the spiral element open at the bottom (for broil). A deflector plate was slid in to direct the heat upwards if you were not using the broiler - not very effective. I believe that this may have been the reason why the UK adopted the styling trend for have a compartment for the broiler above the main oven, which eventually was often equipped as a second, smaller oven. This continued after the solid plates had disappeared, and indeed you see that style now in your US ranges with a second, smaller oven above the larger.
Both the "Frigidaire style" (thick spiral) and "GE style" (thinner spiral) have been seen back in the 1950s, but by around 1963 the GE style became pretty much universal and the solid plates disappeared entirely. This carried on for about 20 years or so - with Simmerstats being added and dual control spirals so that for smaller pans only the inner spirals operated.
It was around 1983/84 that the trend particularly changed with the large scale import of European (particularly German) ovens and (separate) hobs which brought solid plates back to the UK. It seems to me that we can trace the start of decline of the UK cooker industry back to that time - although radiant rings continued in use for the next 15-20 years but their use very quickly declined, confined to freestanding ranges, and generally to satisfy a traditional, "replace what I have with what I know ", market.
The red dot usually indicates the burner will heat up faster. Some solid plates also had Simmerstats, how useful these were is debatable given the slowness of response - can you tell I hate them? LOL
Al