Fans of Formula 1 will have watched McLaren’s Oscar Piastri storm to victory in Miami over the weekend (2-4 May 2025) after taking the lead and never really being challenged again.
It was my first Grand Prix, and nothing could have prepared me for witnessing the raw power of the cars, which reach around 233mph. They appear as little more than flashes of colour as they whizz past, producing an almighty roar (I would recommend earplugs).
My F1 experience turned out to be one of the most memorable races in recent history, and not just because of Piastri’s clinical performance. Traditionally, drivers take a pre-race lap in a flatbed truck to wave at fans; in Miami, the truck was replaced by life-sized F1 cars made entirely out of Lego.
About four million bricks were used in the construction of ten fully functional cars (one for each team, with each car accommodating two drivers). Each weighs 1,500kg, just under twice as much as the real thing. They are perfect replicas of their F1 counterparts, each with their own colours, liveries and shapes (despite the fact that teams are notoriously secretive about their designs, they agreed to provide details for the sake of accuracy).
Each car had a team of 26 designers, engineers and builders working on it for a total of 2,000 hours. ‘It’s definitely a record for us, because it would usually take eight months to do one car,’ says Jonathan Jurion, senior designer at Lego.
The process of making the cars started with modelling software, he adds, before plans were passed to Lego’s builders in its factory in Kladno, Czech Republic, where many of the brand’s big builds, such as the ones featured in its theme parks, are created.
Because of the size of the cars (around 30 times bigger than the F1 Speed Champions toy on which they are based), they were not built in quite the same way as one might do it at home, but ‘layer by layer, like a house’, says Jurion. They were also constructed in sections – the cockpit, engine cover, front wing, rear structure and the halo – and then put together.
‘We glue the bricks together,’ the designer adds. ‘We don't want to lose any on the track!’ These proved to be famous last words as, during the driver’s parade, Lewis Hamilton’s car received a knock from Alpine’s Pierre Gasly, sending Lego flying.
It’s one thing to build an F1 car out of Lego, but to make it strong enough to drive at 20km per hour is quite another. ‘Our team of technical engineers needed to make sure that we could actually build these, because it's not an easy task,’ says Jurion. Each car contains a chassis, electric drivetrain, hydraulic brakes and a power steering system, as well as authentic Pirelli tires – these are the only non-Lego bits.
