RacingThe very car that launched Ayrton Senna’s Formula 1 legend is heading back to Monaco. RM Sotheby’s will auction his 1984 Toleman TG183B-05 on 25 April with an estimate of €2.8–3.8 million, a return to the scene where Senna hunted down Alain Prost in heavy rain and announced himself to the sport.
This is the chassis from Senna’s rookie season that put his first points on the board. He scored sixth place in South Africa and again in Belgium, early markers for a driver who adapted fast. Then came Monaco. In a rain-soaked race that was red-flagged, Senna charged through the field and closed on Prost before the stoppage ended the fight. That afternoon helped light the rivalry that followed them for years.
TG183B-05 powered Senna through the season’s opening stretch with Toleman, starting with his home debut in Brazil and into the first rounds of 1984. The car carried a small team and a rookie into the front of the conversation in the toughest conditions on the calendar. It became a reference point for what was coming next.
Rory Byrne designed the TG183B with some striking ideas for its time, including a double rear wing and front-wing radiators. The auction car runs a period-correct Hart 415T, aligning it with the spec Senna raced. It is eligible for the Monaco Historic Grand Prix, which adds a clear path for future outings on the streets where it made its name. Toleman preserved the chassis before its return to auction, a detail that underscores its continuity back to 1984.
The car has stayed in the public eye. Martin Brundle drove TG183B-05 in a 2022 Sky F1 documentary, putting modern cameras on a machine from the first turbo era. Pierre Gasly then drove it at Silverstone in 2024 to mark 40 years since Senna’s debut and the 30th anniversary of his death, a moment that linked today’s grid to a driver many still study.
RM Sotheby’s is bringing the chassis to the principality with expectations shaped by its place in Senna’s breakout year and the Monaco performance that still gets replayed. For collectors and fans, it is a chance to see, and potentially own, the exact Toleman that carried Senna to his first points and that rain-soaked podium. The auction lands on 25 April in Monaco, where the story first caught fire.