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    The Lancia Delta S4 (also known by its Abarth project code SE038) is a Group B rally car manufactured by the Italian car company Lancia. The Delta S4 competed in the World Rally Championship in 1985 and 1986, until Group B class was disbanded and the cars were eventually banned from competition completely by … See more

    The car's 1,759 cc (1.8 L) Inline-four engine combined supercharging and turbocharging to reduce turbo lag at low engine speeds (rpm). The twincharged system was a development of the 037 engine that … See more

    In competition, the car won its first event, the 1985 RAC Rally in the hands of Henri Toivonen and carried Markku Alén to second in the … See more

    Between October 1985 and 1986 Lancia, in keeping with Group B racing regulations, was to have built 200 of a road-going version of the Delta S4, officially named … See more

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  2. Lancia Delta S4 (Group B) | Rally Group B Shrine

  3. Lancia Delta S4 Group B Works – The Car That Won …

    Web5 Nov 2022 · Italian. Main. Rally. Reading time: about 8 minutes | Written by Jon Branch | November 5th 2022. The Lancia Delta S4 is a Group B rally car created with the sole purpose of winning events in the World Rally …

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    The Lancia Delta S4 (also known by its Abarth project code SE038) is a Group B rally car manufactured by the Italian car company Lancia. The Delta S4 competed in the World Rally Championship in 1985 and 1986, until Group B class was disbanded and the cars were eventually banned from competition completely by European sanctioning body FIA.
    The Lancia Delta S4 was one of the fastest and most advanced Group B rally cars ever developed, it would also directly lead to the entire Group B class being shut down by the FIA. In some ways the Delta S4 was the quintessential Group B machine – it was a lighting fast, fire-breathing rally car that proved both successful and lethal.
    Between October 1985 and 1986 Lancia, in keeping with Group B racing regulations, was to have built 200 of a road-going version of the Delta S4, officially named Lancia Delta S4 but widely known as "Stradale", for the purpose of homologation in Group B, but it is more likely that fewer than 100 were actually built.
    The Group S Lancia ECV was to replace the Delta S4 in the 1987 season but the Group S was scrapped along with Group B and Lancia used the production-derived Delta for the 1987 season. The method of turbocharging and supercharging an engine is referred to as twincharging. The Delta S4 was the first example of this technology.
  5. Guide: Peak Group B - a Historical & Technical Appraisal of the …

  6. Web4 Feb 2020 · The Lancia Delta S4 was one of the fastest and most advanced Group B rally cars ever developed, it would also directly lead to the entire Group B class being shut down by the FIA. In some ways the …

  7. Web14 Aug 2022 · The Group B-spec Delta S4 originally numbered 28 examples, and homologation rules further gave us a few road-going cars. Photo: Peter Singhof for Artcurial. The Italian automaker needed...