Toleman TG184 Hart Turbo Toleman Group Motorsport No. 20 Johnny Cecotto Dallas GP 1984 with Driver Tecnomodel 1:18

The 1:18 scale model from Tecnomodel's Mythos Collection documents a specific, historically loaded moment: car number 20 on the grid at Round 9 of the 1984 FIA Formula One World Championship. Cecotto qualified 15th and retired on lap 25 after spinning off the crumbling Fair Park street circuit, in 40-degree Texas heat. Within days, a practice crash at Brands Hatch ended his Formula One career entirely.

Rory Byrne's Carbon Monocoque

The TG184 was designed by Rory Byrne and Pat Symonds — both later architects of Scuderia Ferrari's dominant years — and introduced at the 1984 French Grand Prix. Its carbon fibre monocoque sat on a 2,800 mm wheelbase, with double-wishbone suspension front and rear. Power came from the Hart 415T, a 1,459 cc turbocharged inline-four producing around 600–650 bhp in race specification and close to 750 bhp in qualifying trim, driving through a Hewland five-speed gearbox. Michelin tyres and Agip fuel completed the package.

The Only Formula One Race Dallas Ever Hosted

The 1984 Dallas Grand Prix — officially the Stroh's Dallas Grand Prix — was held on 8 July 1984 and remains the sole Formula One event staged in Texas. The 3.901 km Fair Park circuit broke up dramatically under the summer heat; Keke Rosberg won for Williams-Honda ahead of René Arnoux and Elio de Angelis. For Cecotto, it was his penultimate classified entry: a former FIM 350cc and Formula 750 motorcycle World Champion, he had joined Toleman alongside Ayrton Senna for 1984, and the Dallas weekend effectively closed his single-seater chapter before Brands Hatch made it official.

The Revised Mid-Season Livery

By Round 9 the TG184 wore Toleman's updated colour scheme — white primary surfaces with blue and red accents, a revision introduced around the Canadian Grand Prix. The early-season specification (Monaco, France) ran predominantly white and blue; the three-colour arrangement seen at Dallas, carrying Segafredo Zanetti and Candy branding alongside Sergio Tacchini, Magirus and Magneti Marelli, is the less-documented livery variant in the model market.

Tecnomodel Mythos Collection: Resin at 1:18

This 1:18 scale model is part of Tecnomodel's Mythos Collection and is produced in resin as a limited edition. A driver figure is included — the figure-equipped variant is distinct from the standard release without one, adding a cockpit-occupied element that is relatively uncommon for 1984-era Formula One subjects at this scale. The model is one of four Tecnomodel TG184 releases with driver figures: the batch also covers Senna at the British and Portuguese Grands Prix, and Pierluigi Martini during practice at the Italian GP.

In the Display Cabinet

The TG184 has a confirmed wheelbase of 2,800 mm; the overall body length of a 1984 Formula One car with nose and rear wing typically runs in the region of 4,200–4,400 mm, which at 1:18 translates to approximately 23–24 cm of shelf length — plan for at least 28 cm of clear space to accommodate the front wing overhang comfortably. The model pairs naturally with the Senna-spec TG184 Mythos releases, forming a complete Toleman 1984 line-up. Collectors building a turbo-era grid will find it sits well alongside 1:18 Minichamps Williams and Ferrari subjects from the same season.