Nascar is an incredibly popular thing for people to watch on the television set, but it's also very dangerous so no wonder there's so much effort put in to keep the drivers safe!
Ok well I guess there probably is a reason.
Once upon a time, there was a man named Glen Roberts. Oh and his nickname was "Fireball".
One day he was racing as usual, in the World 600 race when shit got bad. Here's how Wikipedia describes the event; "...On lap 7, Ned Jarrett and Junior Johnson collided and spun out and Roberts crashed trying to avoid them. Roberts' Ford slammed backward into the inside retaining wall, flipped over and burst into flames. Witnesses at the track claimed they heard Roberts screaming, "Ned, help me!" from inside his burning car after the wreck. Jarrett rushed to save Roberts as his car was engulfed by the flames. Roberts suffered second- and third-degree burns over 80 percent of his body and was airlifted to a hospital in critical condition."
Then after two more people burst into flames Nascar was tired of mothers shaking their heads sadly in front of the tv and said "Fuck it, wear this." And the fire-retardent suit came into play.
In Nascar, lots of things can happen at unexpected times, of the coolest is when this happens;
As cool as this may seem, it's not cool for the drivers who probably look like this;
So to combat this situation, Nascar came out with the Steel And Foam Energy Reduction Barrier (the SAFER Barrier!!!!!) to stop cars from getting completely wrecked.
Although all it really looks like is foam with concrete blocks in between, we can trust that it's fine.