Legacy Metrics

1978 Lotus Type 79 'John Player Special'

79/4 (in period aka 'JPS22')racingUnited Kingdom
Engine
3.0L V8 Cosworth-Ford
Colour
Jet black with gold livery

Chassis 79/4, also known in period as 'JPS22', is the 1978 Lotus-Cosworth Ford Type 79 in which Mario Andretti secured the Formula 1 Drivers' World Championship at Monza, making him only the second American to hold that title. Constructed by Team Lotus and clothed in the iconic black-and-gold John Player Special livery, the car embodies the ground-effect aerodynamic revolution conceived by Colin Chapman and Peter Wright. It remains the sole surviving Formula 1 car in which an American driver clinched the championship, and the last Lotus to win the Constructors' title.

Ownership

  1. 2023-11-25Auction sale
    Estimate US$6,500,000 – US$9,500,000

    Bonhams catalogue lot →

  2. 1978 → 1983Factory delivery
    Team Lotus (factory)
    partial documentation

    Built and raced by the constructor through the 1978 championship season and into 1979, then held in reserve before eventual sale.

  3. 1983 →Private sale
    Private owner (US vintage racing)
    partial documentation

    Car entered American vintage racing, sustaining a significant on-track accident requiring extensive repair work before being returned to running order.

Competition

  1. 1978Formula 1 World Championship
    1978 Dutch Grand Prix
    Driver: Mario Andretti1st

    Public debut of this specific chassis; Andretti's sixth Grand Prix victory of the 1978 season.

  2. 1978Formula 1 World Championship
    1978 Italian Grand Prix
    Driver: Mario Andretti6th (demoted from 1st due to a pre-race infringement penalty)

    Andretti crossed the line first but was penalised post-race; the single point for sixth place was nonetheless sufficient to clinch the Drivers' World Championship title.

  3. US vintage racing
    American vintage racing (accident)
    DNF — on-track accident

    Chassis sustained damage requiring substantial repair work during its private-ownership vintage racing career in the United States.

Maintenance & restoration

  1. Repair

    Extensive repair work carried out following an on-track accident sustained during American vintage racing activity.

    Described as having been completed lovingly; after the work Mario Andretti drove the car again in an energetic manner.

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Each chassis record is compiled from public auction archives and links to its source material. Ownership, competition and maintenance entries are extracted from those catalogue listings by an LLM, which can make mistakes — please contact us with any corrections. The summary is Legacy Metrics’ own writing; we do not reproduce catalogue text.

“Full” and “partial” documentation labels indicate how well each entry is corroborated in the underlying sources, not an audit of the car’s physical paperwork. Names of recent or living owners are withheld for privacy.

Legacy Metrics — 1978 Lotus Type 79 'John Player Special'