Jenson Button has admitted that F1 must now seriously consider closed cockpits for F1.
The Briton's comments come days after IndyCar, and former F1 racer, Justin Wilson died after being struck on the head during a race in the US. That incident follows other high-profile fatal accidents including Jules Bianchi and Henry Surtees.
"This shouldn't happen at this time in motorsport," Button told reporters. "It's not the 70s, we should know better.
"I was one of many drivers that said 'This is open cockpit racing, it should stay as open cockpit racing'," he continued, "But I think we've all had enough now. It's time to do something serious about it, not just changing the headrest on the cars and things. I think you've got to get a canopy on the car of some sort. We can't have this happening as much as it has.
"Since Henry Surtees, there have been a lot of head injuries that have ended up with death, so it's got to be changed," said the McLaren driver. "And I personally feel that it needs to happen sooner rather than later and I think in Indycar it needs to happen because they seem to have a lot more issues than we do."