1967 Porsche 911 Rally Coupe (option 9552)

Oxford, New York resident who acquired the car through a local Porsche dealer. Campaigned it in SCCA and IMSA events before parking it in dry storage after the 1974 season.

Commissioned a thorough restoration to the car's 1971 championship-winning configuration, including bodywork, suspension rebuild, and a period-correct engine build using some original components.

Local and regional events contested during the car's first year in Niederer's hands, before formal circuit racing began.

Car was modified for proper circuit racing with roll cage, wider wheels, fender flares, and suspension tuning ahead of this campaign.

Niederer also claimed the C-Class Production Regional title and Best Regional Driver honour in the same season.

Won alongside the state-level championship; qualified for National Runoffs at Road Atlanta but did not attend due to cost or scheduling.

The Polak racing unit expired at this event while Niederer was pursuing competitors with larger and lighter machinery, effectively ending his racing campaign.

Displayed at a Porsche Club of America gathering as part of the car's post-restoration exhibition activity.

Exhibited at this air-cooled Porsche enthusiast event, one of several PCA-affiliated appearances made after restoration.

Contested the sub-2.5-litre GTU category from around 1972 to 1974 using a Vasek Polak racing engine; ultimately outpowered and outweighed by the professional field.

Raced on multiple occasions at this historic event under the ownership that followed the 2004 restoration.

Car prepared for formal SCCA C-Production racing: partial roll cage and custom front spoiler added, wider Minilite wheels fitted with corresponding fender alterations, quick-fill fuel cap installed in the bonnet, and factory sports suspension adjusted.

Modifications carried out by or under the direction of Hans Niederer.

Original engine replaced with a 2.0-litre 901/02 racing block and associated performance components acquired from Vasek Polak, for use in IMSA GTU-class competition.

Parts sourced directly from well-known Porsche specialist Vasek Polak.

Comprehensive bare-shell restoration to the car's 1971 SCCA championship-winning configuration: chassis verified straight, all original Sekurit glazing retained and refitted, bodywork refinished in factory Sand Beige (6607 G), and interior redone to the original racing specification including period SCCA plaques.

Workshop located in Stuart, Florida; restoration date inferred from notes referenced as 2005 within the catalogue. Chassis found to be straight and free of damage despite years of amateur racing.

Complete suspension rebuild using new Koni dampers and upgraded bushings and bracing throughout; Minilite magnesium wheels with Hoosier racing tyres, ATL fuel cell, fire suppression system, Recaro period-style racing seats, and a full integrated roll cage with harness all installed.

Work aimed at improving both safety and on-track performance while maintaining eligibility for top-tier historic racing categories.

A bespoke 2.0-litre twin-plug 901/06 flat-six assembled using the car's original numbers-matching casing, selected 911 R period accessories, and surviving Vasek Polak speed parts from Niederer's racing days; a correct-pattern five-speed gearbox with optimised ratios also fitted.

Engine designed to balance street usability with competitive historic racing performance.

FIA Historic Technical Passport issued, certifying the car's eligibility and specification for historic motorsport.

Passport dated 13 June 2010; HMSA logbook also maintained.