Porsche
928 S4 Clubsport

Why it matters

The Club Sport was a lightened, more focused version of the 928 S4. It combined a large weight saving with a lighter exhaust, new camshafts and a short-ratio five-speed gearbox. Very few were built; the auction house reports fewer than 20.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Photos

Exterior, interior and detail photos with their licences.

• Porsche 928 S4 Clubsport (Wikimedia Commons search)
  Photo: Detectandpreserve · CC BY-SA 3.0
• Porsche 928 S4 Clubsport (Wikimedia Commons search)
  Photo: Detectandpreserve · CC BY-SA 3.0
• Porsche 928 S4 Clubsport (Wikimedia Commons search)
  Photo: Detectandpreserve · CC BY-SA 3.0

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Porsche introduced the 928 S4 in 1986 with 235 kW (320 PS) and added a Clubsport version in 1988 that was 120 kg lighter. The saving came from removing sound deadening and heavy electrical equipment. RM Sotheby's says reportedly fewer than 20 were built.

The cataloged car, in Guards Red, was delivered new to Germany in October 1988 and stayed with its first keeper until 2006 before passing through several owners. It is titled as a 1988 car and showed 63,691 km at cataloguing.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Identification guide

How to tell an original from a replica or later conversion.

Club Sport graphics sit on the front-left wing and the car wears 16-inch forged aluminium wheels. The five-litre V8 is paired with a short-ratio five-speed manual gearbox, and the interior is stripped of sound deadening and heavy electrical equipment. The cataloged car is in factory Guards Red over black leather; chassis WP0ZZZ92ZKS840486, engine 81K00221S.

Sources

Each number links to the exact facts it supports.

1. 1
   RM Sotheby's – 1989 Porsche 928 S4 Club Sport Level B

   • 19 customer Club Sport cars ("reportedly just 19 examples"; prototypes and factory-driver cars excluded)

   Accessed 2026-11-12
2. 2
   Porsche 928 S4 Club Sport / SE 1988-89 Level B Stuttcars

   • 17 Porsche produced a limited run of 17 CS 928s
   • The 928 Clubsport got the S4's 5.0-litre V8
   • 330 bhp at 6200 rpm
   • increasing the rev limit to 6775 rpm
   • limited-slip differential with a 2.73:1 final drive
   • 10 percent stiffer front springs and all-round Boge sports dampers
   • weight was reduced from 1640kg to 1450kg

   Accessed 2026-11-12
3. 3
   1989 Porsche 928 S4 Club Sport (Paris 2025, lot 148) Level C RM Sotheby's

   • Matching-numbers 5-litre V-8 engine delivers 320 horsepower to the rear wheels
   • short ratio, five-speed manual gearbox
   • for a top speed of 270 km/h

   Accessed 2026-11-12
4. 4
   Time lapse: Porsche's transaxle models Level A Porsche Newsroom (Christophorus 418) · 2026-06-11

   • The 928 S4 with 235 kW (320 PS) is unveiled

   Accessed 2026-11-12