Mercedes has integrated a new rear light assembly on its W09 following a demand by the FIA to trial the system during this week's in-season test at Barcelona.
The system features a normal main rear light but red LED strips have been added to the W09's rear wing end-plates, an assembly similar to what has been used for several years in the World Endurance Championship.
The concept aims to improve the visibility of the lights for a driver following a car in rainy and heavy spray conditions.
The purpose of today's test was obviously to validate the functionality of the system rather than its efficiency given the sunny Spanish weather.
If the FIA believes the system represents a safety improvement for F1 it can simply include the change in the 2019 technical regulations without putting it through a vote to the teams.
Gallery: The beautiful wives and girlfriends of F1 drivers
Keep up to date with all the F1 news via Facebook and Twitter
Alpine has reportedly locked in the services of F1 rookie Franco Colapinto for a duration…
Aston Martin has confirmed that Felipe Drugovich will remain with the team as its Test…
The Haas F1 Team will be up and running this week in Spain as part…
Spa Grand Prix president Melchior Wathelet admits to difficult talks with Formula One to keep…
Harking back once again to the days when Formula 1 used to hold races in…
Sergio Perez may have bowed out of his Red Bull race seat after a turbulent…