Factory build sheet

2018 Porsche 911 Carrera (2WD) / Carrera 4 (4WD)

Build WP0CA2A9-J · 3L 6cyl · All-wheel drive · Convertible

VIN positions 1 through 8 read WP0CA2A9 and position 10 reads J. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.

Every 911 whose VIN starts WP0CA2A9 and carries J in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 235 of them.

  • Decoded Jul 7, 2026
  • 235 known VINs
  • 8 listed for sale now

Factory specification

As filed by Porsche with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.

Engine

Displacement
3 L
Cylinders
6
Engine model
6-cylinder turbo
Engine manufacturer
Dr. Ing. h.c.F. Porsche AG
Horsepower
370 hp
Fuel type
Gasoline

Drivetrain

Drive type
All-wheel drive

Body & chassis

Body class
Convertible/Cabriolet
NHTSA body type
PASSENGER CAR
Doors
2
Seats
4
Seat rows
1
Series
Type 991
Manufacturer
DR. ING. H.C.F. PORSCHE AG

Weight rating

GVWR class
Class 1C
GVWR
4,001–5,000 lb

Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.

Driver assistance, as built

  • Forward collision warning Optional
  • Crash imminent braking Optional
  • Adaptive cruise control Optional
  • Blind spot warning Optional

Systems the filing does not record are not listed above. Check the window sticker of the exact car before you rely on any single feature.

What this build asks today

Asking prices of live dealer listings decoded to this exact configuration — narrower than the trim-level figure, because every car counted here shares the same engine, transmission and drivetrain.

$99,995 median asking price · 11 listings · as of Aug 30, 2026

Too few listings to publish a price range — with 11 cars on the market, the cheapest and the dearest are single cars, not a spread. The median above is what they ask in the middle.

Compare every 2018 911 trim and its price →

The same build, other model years

Porsche used the VIN pattern WP0CA2A9 for 8 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.

$59,990 2010 $61,997 2011 $73,449 2013 $69,075 2014 $77,965 2015 $69,495 2016 $89,500 2017 $99,995 2018

How this VIN pattern is read

A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.

Positions Characters What they encode
1–3 WP0 DR. ING. H.C.F. PORSCHE AG · World manufacturer identifier
4–8 CA2A9 Model, body style, engine and restraint system
9 × Check digit — computed per vehicle, not part of the build
10 J Model year — 2018
11 × Assembly plant
12–17 ×××××× Production sequence number, unique to each vehicle

235 vehicles carry this build

Every VIN we have decoded to WP0CA2A9-J shares the specification above.

  • 235 Known VINs
  • 8 Listed for sale now
  • 11 Priced listings
  • $99,995 Median asking

Cars are filed by a fixed rule based on the VIN, so a car never moves between groups.

Browse all 235 VINs of this build →

Neighboring configurations

Other factory configurations of the 911, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.

Keep going

Where this data comes from

Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.

Prices are asking prices from 11 live dealer listings decoded to this build , last updated August 30, 2026 . They are what sellers ask, not what buyers paid.

Vehicle counts come from the 235 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.