The atmo gamble

For 1988, Formula One ran its last turbo season under tight new limits, with naturally-aspirated 3.5-litre cars handed a lower weight floor and no fuel cap to pull the grid toward the atmo-only 1989 future. Ligier read the writing on the wall and jumped early: out went the turbocharged era, and in came the customer Judd CV V8, the same well-regarded normally-aspirated engine that powered March and would soon win races elsewhere ¹². On the face of it, it was a sensible bet — around 600 bhp at over 11,000 rpm, the 500 kg atmo minimum weight, and no thirst worries ³. The engine was never the problem.

The problem was everything wrapped around it. The JS31 was penned by Michel Tétu with Michel Beaujon and Claude Galopin, built around a modern carbon-fibre and Kevlar monocoque ¹. But in chasing ideal weight distribution, the team adopted a bizarre four-cell fuel layout — a tank either side of the driver, one between driver and engine, and a fourth between engine and gearbox ¹. The result was a heavy, awkwardly-balanced car that simply would not generate grip.

“The two cars managed to qualify together on only ten weekends all year, and several of those ended in retirement.”

A car nobody could drive

The warning signs came before a wheel turned in anger. Christian Danner, originally signed to partner René Arnoux, could not physically fit comfortably in the cockpit and was dropped; Stefan Johansson, fresh from a McLaren seat, took his place ¹. Johansson would later describe the JS31 as the strangest car he ever raced — both drivers complained that even on a bone-dry track the lack of downforce forced them to drive as if it were wet, nursing the car through corners on a knife-edge ¹.

Arnoux, a 12-time podium finisher and former Ferrari driver, was now 39 and three seasons into his Ligier twilight. Together the two veterans had pace and pedigree, and could do nothing with it. The JS31 was slow in a straight line relative to the surviving turbos, nervous everywhere else, and frequently not even quick enough to make the grid.

Zero, and the home-race humiliation

The numbers tell the story without mercy. Across all 16 rounds Ligier scored no points — the team's worst campaign since 1983, and the only time the once-proud French marque went a full season blank in that era ¹⁴. The best result all year was a distant ninth, recorded by Johansson at the Brazilian opener and again at the Australian finale; Arnoux's high-water mark was tenth in Portugal ³⁴.

Far more often the cars simply failed to qualify. Eight DNQs piled up between them — Johansson missing the cut six times, Arnoux twice ³. The nadir came at the French Grand Prix at Paul Ricard, the team's home race: both blue cars failed to qualify, in front of Ligier's home crowd, on the eve of Arnoux's 40th birthday. Owner Guy Ligier, never a man to hide his displeasure, was furious ¹⁴. The two cars managed to qualify together on only ten weekends all year, and several of those ended in retirement.

Pretty, and a dead end

For all that, the JS31 looked the part. Dressed in deep French racing blue for cigarette brand Gitanes and the national lottery Loto, with Valvoline backing, it was one of the more handsome cars of 1988 ². That only sharpened the contrast: a good-looking, technically ambitious atmo car that arrived early for the new era and got everything wrong. The four-tank packaging idea was abandoned, Tétu's reputation took a dent, and Ligier — a team that had won grands prix earlier in the decade — slid toward the back of the grid, where it would largely remain. The JS31 stands as one of the genuine flops of the late turbo era: well-engined, well-funded, and almost undriveable.