#1 Spa Break Gone Wrong
The Halo was controversial, but after the 2018 Belgian Grand Prix, nobody can claim that it's not necessary.
The La Source hairpin has witnessed some huge wrecks over the years, 1998 and 2012 being the worst example, but the pile-up from last year's race is right up there. At the start, Lewis Hamilton held off Sebastian Vettel but the real action was occurring behind them, as Nico Hulkenberg locked-up and ran into the back of Fernando Alonso.
Alonso spun 90 degrees and smacked into the back of Charles Leclerc's Sauber. Alonso then flew up in the air and came back down just in front of the Monegasque driver. All three would immediately retire, while both Kimi Raikkonen and Daniel Ricciardo also retired through collision damage later.
Slow-motion replays showed a more gruesome detail, Alonso's car had ridden on the top of Leclerc's Halo during his time airborne. Had the Halo not been there, the Spaniard's McLaren would've likely scraped Leclerc's helmet, something that could've ended in tragedy.
What do you think was the biggest Formula 1 crash in 2018? Was it one of our five or another? Let us know in the comments below!