Major upgrades for McLaren and Mercedes, a new look for Ferrari and a crunch meeting for Andretti - here are the talking points for the Miami GP.
McLaren has released David Malukas from his contract to race for them after he failed to participate in the first three rounds of the championship.
McLaren branded their performance in last weekend's IndyCar race "abysmal" as none of their three cars finished inside the top 20.
It's race week! Formula 1 heads to Miami International Autodrome this weekend. Here's how to watch the Miami Grand Prix and more.
In the round-up: Allison eyes qualifying boost in Miami • Abel takes Barber Indy Nxt win • Sharp leads McLaren junior Ugochukwu in GB3
