Porsche 911 (964)

168 sales analyzed · 15 topics from real Bring a Trailer & Cars & Bids comments.

“The total number of all 964 coupes both C4 and C2 both manual and tip trans cars is only 27,219 a far cry from the 33k the internet keeps getting incorrect”965 · Oct 15, 2025 at 10:07 AM

• Production scarcity + accelerating attrition (Singer / RWB)value-and-market
  Total 964 coupe production was 27,219 — not the 33,000 commonly cited online. By 2010 roughly 30% had already been parted out or converted; Singer alone continues to chop ~4 per week for backdates, plus 20+ other shops doing similar work, plus RWB conversions. …
• M64 engine reseal — the standard restorativemechanical
  A bottom-end and top-end reseal is the canonical 964 engine restorative. The telltale signs of competent work are: case seam bone-dry, cylinder bases clean, and yellow factory torque marks visible on fasteners. …
• Factory option-code literacy — X / Y / Z / 5-digit production codesfactory-spec
  964 authentication leans heavily on factory code decoding. BillG993 (a domain expert) lays it out: X codes = Exclusive Department options on hood stickers; Y codes = bundles of X options on build sheets; Z codes = interior options; 5-digit codes are production line instructions (e.g. …
• America Roadster — 250 made, Carrera 2 mech over Turbo bodyfactory-spec
  The 1992-1993 America Roadster is a North-America-only variant: just 250 built, sharing the Carrera 2 drivetrain with the Turbo body (wide front and rear fender flares, bumpers, brakes, suspension, and wheels). It's one of the most exclusive 964 variants and trades accordingly. …
• 1992 USA Cup Cars — Andial conversions and the 'port car' valuation tierfactory-spec
  1992 Carrera Cup USA cars came through Andial for race conversion. Many were reconverted back to street trim when the US Cup series collapsed — sometimes multiple times. …
• C4 Leichtbau and other ultra-rare variantsfactory-spec
  The 964 C4 Leichtbau is one of the rarest 964s — only a handful built, with race-VIN status that complicates street registration in California (other states OK). D90 wheels in 7.5" × 16" and 9" × 16" sizes; community experts (notably '965') correct widely-circulated misinformation about wheel material (cast magnesium was apparently only the RS spec; what's on the Leichtbau is in some cases unclear without in-person comparison). …
• 1989 Speedster — original $50k dealer ADM, today's pricing resetvalue-and-market
  1989 911 Speedster (technically a G-body, but conventionally grouped with the 964 era given the model-year crossover) was one of the first Porsches to sell with ADM ('Additional Dealer Markup') / ADP — average $50k over MSRP, $120-130k nationwide on a $75k sticker. Current market: comparable Speedsters in clean condition trade ~$190k; damaged-history examples sell $50k below that — even after subsequent PCA national concours wins. …
• Tourist Delivery, MIZWA (Japan), and provenance premiumsownership-history
  Two provenance signals premium-price 964s: factory Tourist Delivery (option code 900 / VentureTour) for cars delivered to the new owner overseas before shipping back; and MIZWA Japanese-market import history. MIZWA cars carry 35 years of biennial Japanese inspection documentation, are widely regarded as exceptionally well-maintained, and are traded heavily in the JDM-revival market. …
• C4 PDAS rear differential — LSD additive requiredmechanical
  964 C4 cars equipped with PDAS (Porsche's traction control system) have rear differentials that require the proper LSD additive in the gear oil. The 'rear differential feels locked up' complaint in service records is commonly the result of wrong or stale fluid, not a mechanical problem — Zuffenhausen-style invoices flag this with the explicit note that the diff 'can be left as-is unless you want rear differential locking capability'. …
• 1993 introduced two-stage base/clear paintfactory-spec
  The 1993 model year transitioned to two-stage base/clear paint, replacing the single-stage paint used on 1989-1992 cars. This affects authentication and correction work: a 1993 with original paint is paint-meter-readable in ways earlier cars aren't, and paint touch-up matching is fundamentally different across the model-year boundary. …
• 1993 USA MT C2 coupes — fewer than 200 ever madefactory-spec
  1993 USA manual-transmission C2 coupes number fewer than 200 examples. Total 1993 model-year imports to US + Canada (C2 + C4) reach approximately 460 coupes. …
• Reversible performance mods — decat / muffler / airbox / chipmodifications
  The 3.6L M64 responds well to a fully-reversible four-piece mod package: decat, secondary muffler delete, Fabspeed airbox cover, and chip tune. Conservatively yields 30+ hp/ft-lb gains and gives the cammy character of the engine more to work with. …
• 1989 930 Turbo (the final 930) — 639 produced, G50 transmissiondrivetrain
  Although chronologically a 1989 G-body, the 1989 930 Turbo sits alongside the early 964s as the final iteration of Porsche's 1975-1989 flagship — and the only year with the G50 5-speed transmission paired to the 3.3L turbo. Only 639 produced. …
• Pre-purchase wear checklist — mounts, bushings, tiresmechanical
  The canonical post-acquisition checklist for any 964 from experienced owners: motor and transmission mounts (wear with age), shift linkage bushings (wear with age), tire date codes (12-year-old tires shouldn't be driven regardless of visible condition), valve adjustment (have it done if records don't show recent work), and AC functional baseline (decent function but don't expect modern comfort). Records vary wildly across cars — the absence of paperwork is itself a useful signal. …
• RWB / Singer / backdate culture — both market driver and existential threatcommunity-sentiment
  The 964 has become the favored donor chassis for the entire backdate / restomod / EV-conversion industry — Singer chops ~4 per week, RWB takes more, ~20 other shops contribute. The community is divided: half celebrate the artistry, half mourn the destruction of original cars. …