Lancia Delta S4

The Lancia Delta S4 is a Group B rally car that competed in the World Rally Championship in 1985 and 1986, until Group B cars were banned from competition by the FIA. The car replaced the Lancia 037 Monte Carlo. The S4 took full advantage of the loose Group B regulations and was highly advanced. The car's 1759 cc four cylinder engine combined supercharging and turbocharging to reduce turbo lag at low RPM. Officially the car produced 550 horsepower (410 kW). Unofficial figures claimed the S4 could accelerate from 0 to 100 km/h on gravel in just 2.3 seconds.

Related Topics:
Lancia - Group B - Rally car - World Rally Championship - FIA - Lancia 037 - Four cylinder - Supercharging - Turbocharging - Turbo lag - RPM - Horsepower

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Like Peugeot's earlier 205 T16, the Lancia Delta S4 was a Delta in name and body styling only (for marketing purposes), and shared virtually nothing in terms of construction with the production Delta.

Related Topics:
Peugeot - Delta

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The Group S Lancia ECV was to replace the Delta S4 in 1987 but Group S was scrapped along with Group B and Lancia used the production-derived Delta in 1987.

Related Topics:
Lancia ECV - Delta

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In competition the car won its first event, the 1985 RAC Rally in the hands of Henri Toivonen and carried Markku Alen to second in the drivers' championship. For two weeks after the end of the 1986 season Alen was champion until the FIA anuled the results of the San Remo Rally due to irregular technical scrutineering. Alen had won that event and the loss of points handed the title to Peugeot's Juha Kankkunen.

Related Topics:
RAC Rally - Henri Toivonen - Markku Alen - FIA - Juha Kankkunen

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Unfortunately the car's legacy was tainted by Toivonen's fatal crash on the 1986 Corsican Rally, where the Finnish driver inexplicably missed a tight left-hand hairpin bend and plunged into a ravine, where his S4's fuel tanks exploded.

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