The hands
The people behind the car
The people whose work shaped the Porsche 964 Turbo S.
Rolf Sprenger
Programme initiator
As manager of Porsche Exclusive, Sprenger proposed and led the department's first complete model development.

Turbo, pared to structure
Porsche Exclusive removed 180 kilograms from the 964 Turbo and raised output to 381 PS. Eighty-six were built, each rear-driven. Options could add comfort back, so specification matters as much as mileage.
Market value · road
$900K–$1.6M
Typical $1.2M · 7 sales · +26% vs ’19–’23
Market value · road
$900K–$1.6M
Typical $1.2M · 7 sales · +26% vs ’19–’23
Market & Price
A terminal for one car: the model curve over the documented record, the benchmarks it is measured against, and the instruments that read it.
Records: 11 documented road sales on file · 2016–2026; estimate band $900K–$1.6M · good road cars. recorded sale prices · mixed hammer and premium-inclusive basis.
Compound annual growth
| Window | This car* | S&P 500 | Gold |
|---|---|---|---|
| 1Y | -27.1% | +18.8% | +21.9% |
| 5Y | +0.7% | +11.4% | +17.6% |
| 10Y | +0.0% | +13.3% | +11.8% |
*Modeled price CAGR · S&P is a price index, no dividends
Deepest drawdown · model window
Forecast ladder · model quantiles
| Horizon | P10 | P50 | P90 |
|---|---|---|---|
| +6M | $989K | $1.2M | $1.5M |
| +12M | $919K | $1.2M | $1.6M |
| +24M | $825K | $1.2M | $1.7M |
Median path with the 10th and 90th percentile · not investment advice
11 of 11 recorded sales · shown in USD · recorded currency in each record
Floor
$900K
Typical
$1.2M
Ceiling
$1.6M
Estimate band for good road cars. 7 documented sales since 2019 plotted below.
Band and axis shown in USD. Sale positions use indicative fixed-rate conversion to USD; sale readouts retain recorded currencies. Estimate for documented, usable cars. Mileage, retained lightweight equipment and factory special-order provenance can move an individual car beyond the band.
Instrument calibration for this file is in progress — the terminal above reads the documented record directly.
Auction totals are recorded as published by the houses. No currency conversion applied.
Overview
Porsche Exclusive manager Rolf Sprenger proposed a light, more powerful Turbo while the company was under financial pressure. A Geneva study in March 1992 translated lessons from the 964 Turbo-based IMSA Supercar programme into a road-legal small series.
Production ran from July to November 1992 for the 1993 model year. The result kept the 964 Turbo's single-turbo layout but removed comfort equipment, reinforced the shell and raised output by 61 PS.
Reference
HICON BID
A HICON Bid is a confidential expression of buying interest on the Porsche 964 Turbo S file — never public, never shown to other members. It is not a binding purchase, and HICONIUM holds no funds.
HICON Bids are a member instrument. Sign in to place one.
The vault
You keep one? The record starts in your garage — identity, papers, photography, and the market evidence this file already carries, bound to your chassis.
The variants
The register separates the 964 Turbo S into its documented executions. One reference silhouette per execution — each opens as its own file as the archive fills.
Turbo S01
Flachbau033 executions on file · references drawn to the house standard
The cars
Documented individual cars — chassis, colour, ownership and sale history. Open one for its full provenance. Public records only; members see the complete registry.
03 documented · public records
The hands
The people whose work shaped the Porsche 964 Turbo S.
Programme initiator
As manager of Porsche Exclusive, Sprenger proposed and led the department's first complete model development.