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Ford Sierra

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FordSierra

RS Cosworth (three-door)

Power
204 PS
0–100
6.5 s
Top speed
240 km/h

Ford Sierra 1986

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Photographs: Vauxford, CC BY-SA 4.0; Calreyn88, CC BY-SA 4.0; DieselFordMondeo, CC BY-SA 4.0, via Wikimedia Commons. Illustrative of the model.

Curator’s note

The turbocharged, whale-tailed Sierra built to win touring car races.

The Sierra RS Cosworth was built so Ford could race the Sierra in Group A touring cars. Its Cosworth-developed 2.0-litre turbo engine makes 204 PS, and its large rear wing became one of the defining shapes of the 1980s.

  • Cosworth YB turbocharged 16-valve engine
  • Large rear wing for high-speed stability
  • Borg-Warner five-speed gearbox
  • Homologation base for the RS500
0–100 km/h6.5s108th of 140 · best 1.8 s
Top speed240km/h99th of 140 · best 420 km/h
Power201hp124th of 140 · best 1,888 hp
Torque276Nm127th of 140 · best 2,360 Nm
Race the Sierra ⚑Launch it, you shiftSpin it in 3DPaint itIts parts in 3DIts engine in 3DRebuild its engine

The story

Ford Sierra

Ford asked Cosworth for a turbocharged racing engine based on its Pinto block, and the result was the YB. The three-door Sierra RS Cosworth went on sale in 1986 to meet the Group A rule of 5,000 road cars.

The rear wing and deep front spoiler were developed to keep the car stable at racing speeds. The cars were built at Genk in Belgium.

Generation
Sierra RS Cosworth, 1986 to 1987
Built in
Genk, Belgium
Gearbox
5-speed manual (Borg-Warner T5)
Kerb weight
1,217 kg

Character

Comfort 6 Pace 8 Off-road 1 Tech 6 Presence 8

Dimensions

4,459 mm long 2,608 mm wheelbase 1,376 mm Width 1,728 mm
01

Ford built 5,545, of which 500 were converted by Tickford into the more powerful RS500.

02

Klaus Ludwig won the 1988 DTM title in an RS500.

03

Ford quoted 0–60 mph in 6.5 s; the 0–100 km/h figure is Ford Germany’s for the later four-door with the same engine.

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3D model "Ford Sierra Costworth" by tract (CC Attribution), via Sketchfab

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