CHAIN REACTION: How one 1990s driver swap led to Lewis Hamilton’s first F1 world championship
It is not unheard of for a driver swap to be made in Formula 1 – but, on one occasion in particular, the consequences of such a move had a fascinating knock-on effect in the years that followed.
In the second episode of our new series Chain Reaction, we take a look at how the decision to switch Alex Zanardi and Juan Pablo Montoya in 1999 – with Zanardi returning to F1 with Williams, while Montoya headed to the CART series in the United States – had a lasting impact on the sport.
As the episode explains, this move kickstarted a sequence of key events which ultimately led to Lewis Hamilton winning his first world championship with McLaren in 2008.
Hit go on the video player above to watch Episode 2 of Chain Reaction.

Next Up
Related Articles
Piastri reveals lessons that will ‘only make me stronger’
11 times F1 drivers took another driver’s car number
REVEALED: Your favourite race of the 2025 season
Formula 1’s record-breaking 2025 season in numbers
Verstappen confirms new number for 2026 season
EXPLAINED: The key terms for F1’s new-for-2026 rules