People rear-end other people because they're tailgating and fail to stop in time despite seeing and reacting to the brake light in good time (gap too short), or they're maintaining a decent gap but fail to notice when the far ahead slows or stops.vc-10 wrote: ↑Sun Feb 17, 2019 1:08 pm LED brake lights react quicker, that fraction of a second could help give people following more reaction time. I thought the Polo had LED tail and brake lights, but looking over the price list it seems like it's only the R-Line and GTI/GTI+ get them standard. If you spec the LED headlights though they fit the LED rears. Interestingly, the Ibiza gets LED rear lights as standard!
The difference in light-up time between LED or Halogen is tiny - no more than a few 1/100 of a second is not going to make the difference between a smash or not, or a major smash vs a minor smash.
The gains in LED use are consumption and lifespan. LEDs use about 1/9 The energy of halogens because there's hardly any heat generation in their output.