What happened: Mika Hakkinen took to the track in the McLaren M2B as part of the team's celebrations for their 1000th Formula 1 Grand Prix. The appearance comes after McLaren fired up the historic M2B car in the Monaco pit lane earlier in the weekend.

Why it matters: Reaching 1,000 races places McLaren in an elite group of Formula 1 constructors, cementing their enduring legacy in motorsport. Showcasing a foundational chassis with a legendary world champion bridges the team's early history with its ongoing modern efforts.

What to watch: McLaren will continue its milestone celebrations throughout the remainder of the Monaco Grand Prix.