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Technical Information

Lot Number:92
Year:1998
Make:Porsche 911
Model:| Factory Nephrite Green Special Leather
Trim:4S
Mileage:79745
Drivetrain:6 Speed Manual AWD
VIN:WP0AA2990WS320513
Engine:3.6L Air-Cooled Flat-6
Body Style:Coupe
Seller:duPontREGISTRYDirect
Seller Type:Dealer
Exterior Color:Arctic Silver Metallic
Interior Color:Nephrite Green

Seller's Introduction

Our team presents a final-year, widebody U.S.-Spec 993 Carrera 4S finished in Arctic Silver Metallic over its rare factory Nephrite Green Special Leather interior. Showing 79,745 miles, this C4S carries well-documented mechanical servicing, including a top-end engine rebuild and clutch replacement, with extensive records and photos. It remains a highly original, collector-grade example of one of the most coveted air-cooled 911 variants.

Overview

The 1998 model year marked the end of the air-cooled 911 era, and the Carrera 4S served as the closing chapter of the 993 platform before Porsche switched to water cooling with the 996. Built for only 1996, 1997, and 1998, the Carrera 4S stands apart within the 993 range because of its configuration. Porsche combined the wide body from the 993 Turbo with Turbo grade suspension and Turbo grade brakes.
 
The model also featured the All Wheel Drive system with a viscous coupling in place of the earlier center differential. Power comes from a naturally aspirated 3.6-liter flat six with the later VarioRam intake system, rated at 282 horsepower and paired with a six-speed manual transmission. The chassis sits between the narrow body Carrera and the Turbo in weight, footprint, and response. The wider rear track, longer wheelbase, and Turbo hardware create a planted feel, while the naturally aspirated engine retains sharp throttle character.

This particular example is a highly optioned and very well-documented U.S. specification car finished in Arctic Silver Metallic over Nephrite Green Special Leather (Code JB). It is an extremely rare factory interior choice and a major part of its collectability. The original window sticker confirms desirable factory equipment, including the Racing Style Sport Seat Lightweight package with carbon-backed sport seats, the Motor Sound Package, storage in place of the rear seats, and Porsche floor mats in black. 

A major top-end rebuild was completed in 2020 at 73,817 miles by Morris Brothers Motorsports due to worn valve guides. The cylinder heads were machined, new guides installed, spark plugs and cables replaced, and the clutch and flywheel were serviced at the same time. Documentation includes records and photos. Paint is original on the body panels with a clear coat respray carried out on the driver door, quarter panel, and engine cover in June 2020. The factory Turbo Twist wheels remain clean and wear Michelin Pilot Sport 4S tires dated 2024.

Inside, the Nephrite Green leather shows light bolster wear on the driver's seat and minor discoloration in the footwell. The car retains its factory leather dash and doors, power sport adjustment, rear luggage compartment, Blaupunkt Toronto SQR 48 radio, and carbon sport seating. Mileage shown is approximately 79,000.

The Carrera 4S was produced in limited numbers with a total run of roughly 6,948 units worldwide. Approximately 2,300 reached the United States, and fewer than 300 of those were 1998 examples. Porsche ended air-cooled 911 production in March 1998, and the final road-going air-cooled 911 to leave the factory was a Riviera Blue Carrera 4S delivered to Jerry Seinfeld. That historical milestone gives the model a unique place in the lineage.

Short production, final year significance, the rare Nephrite Green interior, factory carbon sport seats, the Motor Sound Package, and extensive documentation make this C4S a standout collector-grade example of one of the most coveted 993 variants.

Features & Options

Exterior

  • Arctic Silver Metallic paint ($1,036)

  • Original factory body panels

  • Clear coat applied in 2020 to the driver door, quarter panel, and engine cover

  • 18-inch “Turbo Twist” wheels, curb-rash free

  • Rear Badge Delete (498)

  • Michelin Pilot Sport 4S tires

    Front: 225/40R18, dated 24th week 2024, Rear: 285/30ZR18, dated 11th week 2024

Interior

  • Nephrite Green Special Leather (Code JB - $4,690)

  • Powered sport seats (373/374)

  • Leather front seats (983)

  • Leather rear seats (936)

  • Leather dash and doors (981)

  • Blaupunkt Toronto SQR 48 radio (“Porsche CD-210”)

  • Rear luggage shelf (419)

  • Automatic speed control (454)

  • Electric sliding roof (650)

Modifications

  • Clear turn signal lenses 

  • Body Colored Bumper Guards (Front/Rear)

  • Aftermarket Alpine head unit installed in the dash

  • Aftermarket amplifier located in the trunk

  • Memphis Audio rear speakers fitted in rear seat cavities

  • Original rear compartment doors included with sale

  • Replacement door speakers installed

Service Records

12/03/2024 – Passed California Smog Inspection
10/28/2024 – Spec German, Gig Harbor, WA

  • Oil change

  • Front control arm bushings recommended (tires already replaced)

11/28/2023 – Zuffenhausen Motors, Scottsdale, AZ

  • Steering wheel airbag frame replaced (restored horn functionality)

11/08/2023 – Zuffenhausen Motors, Scottsdale, AZ

  • Oil change and general inspection

  • Clutch and brake fluid replaced

  • Throttle pedal lubricated

10/10/2022 – C&F Auto, Costa Mesa, CA

  • Oil change

07/03/2020 – Morris Brothers Motorsports, Murray, UT

  • Cylinder heads refurbished due to worn valve guides

  • Heads disassembled, cleaned, media blasted

  • New valve guides and seals installed

  • Spark plugs and cables replaced

  • Clutch and flywheel replaced

  • Photo documentation included

Ownership Documents

  • Extensive service records

  • Photos of top-end rebuild

  • Original option list and window sticker

Ownership History & Provenance

This 993 C4S has been maintained by Porsche specialists across California, Utah, Arizona, and Washington. The car retains its factory panels, original paintwork aside from targeted clear coating, and remains mechanically well-documented. Strong service history and continuous upkeep reflect careful long-term ownership.

Known Shortcomings

Exterior: Light rock chips on the front end, side skirts, and behind the rear wheels, including one larger chip near the driver-side headlamp. A small windshield chip sits just above the VIN window. Panels appear original, with a 2020 invoice noting fresh, clear coat on the driver door, quarter panel, and engine cover.
 
Interior: The cabin features light wear on the driver's seat bolster and minor staining on the driver's footwell carpet.

Items included in the Sale

  • Storage compartment doors

  • Extensive service documentation and receipts

  • Window sticker and option list

  • Two keys

  • Owner’s manuals

1998 Porsche 911 | Factory Nephrite Green Special Leather
Bids: 0
Watching: 19
Ending: November 24, 2025 at 8:04 PM
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Current Bid: $139,000 By: No bids yet

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