Kimi Antonelli extended his Formula 1 championship lead with victory in an enthralling Miami Grand Prix. The Mercedes driver came out on top after leaping ahead of McLaren's Lando Norris with a well-timed pitstop, having lost ground at the start yet again. Oscar Piastri was third after a dramatic final lap that saw Charles Leclerc spin out of fourth as Miami delivered a gripping event. Miami Gardens, FL, USA; Mercedes driver Kimi Antonelli (12) leads McLaren driver Lando Norris (1) | Nathan Ray Seebeck-Imagn Images Antonelli reigns supreme Despite the race start being moved forward three hours, it was still expected to rain for lights-out. But the offending weather cell passed north of the circuit, meaning slicks were on all the cars for the crucial getaway. Antonelli had a much better start but was still swamped by Leclerc and Verstappen as they went three wide into Turn 1.…