Offered here is one of the most unique and historically intriguing
Mustangs ever constructed, a 1964� Ford Mustang Hardtop Retractable
Coupe, custom built in 2005 by Jon Wilhelm of Wilhelm Motor Works
in Draper, Utah, completed under license by Shelby Automotive as
the GT350CR prototype-designated Continuation Retractable.
Conceived as a bold extension of the Shelby GT350 legacy, this
remarkable Mustang was engineered to combine early Mustang styling,
Shelby performance ethos, and a dramatic retractable hardtop
concept never previously offered by Ford or Shelby.
The GT350CR program was commissioned alongside a parallel effort to
develop a GT350C, a traditional convertible version submitted to
Shelby Automotive for approval. With assistance from Mustangs Plus
and The RestoMod Shop of Stockton, California, which supplied
components to the famed GT500E "Eleanor" builds by Unique
Performance, the project was executed to an exceptionally high
standard. In total, approximately four units were constructed with
the first three being GT350C convertibles, and this car standing
alone as the only completed GT350CR retractable hardtop
convertible. This singular example served as the official
promotional vehicle, displayed at SEMA, showcased and winning at
Mustang Club of America events, and presented directly to Shelby
Automotive directors as the final evaluation model for potential
full-scale production.
Despite strong interest and public exposure, a licensing dispute
between Jon Wilhelm and Carroll Shelby in 2007 brought the project
to an abrupt conclusion before series production could commence.
With the program halted, the GT350CR never progressed beyond the
prototype stage. As a result, this car transitioned from a proposed
continuation model into a deeply personal endeavor for Wilhelm
himself, ultimately becoming part of his private collection upon
completion.
Beginning with a true 1964.5 Mustang Coupe platform, the idea of
using the original engineering designs created by Ben Smith, a
former Ford engineer behind the late-1950's Fairlane Skyliner
Retractable, they would blueprint this concept Mustang Retractable
into life. This incorporates a custom 2-piece carbon fiber roof
panel that manually folds into a custom fabricated trunk
compartment by way of a reverse hinged trunk lid, also custom made
from carbon fiber with integrated Shelby-inspired ducktail spoiler.
One other subtle body detail lies along the lower fenders and
rockers as a ground effect aerodynamic accent.
Restored in true rotisserie fashion, with every part needing to be
brand new and available prospective customers during production, it
would be built with great attention to detail. The factory unibody
chassis reenforced underneath, all new suspension components with
front & rear anti-sway bars, new SSBC power 4-wheel disc brakes,
power rack and pinion steering, crate Ford Racing engine, Ford AOD
automatic transmission with TCI Outlaw rachet shifter, 8" Currie
axle with limited-slip gearing, Old Air Products air conditioning,
BeCool Inc radiator with GMB aluminum water pump & electric fan,
Ring Brothers hood hinges, all billet aluminum body hardware, and
so much more! The paint work was completed in a professional
multi-layer application in TruBlu by House of Kolor with their
Tangelo Orange adding triple Lemans-inspired stripes, all buried
under several layers of clearcoat for a spectacularly smooth
finish! On the ground are Goodyear Eagle F1 tires measuring
235/45R17 on traditional American Racing TorqueThrust II
wheels!
The engine utilizes aluminum heads, custom cam, Edelbrock Performer
aluminum intake, Quick Fuel Technologies carburetion, JBA titanium
shorty headers, Spin Tech performance mufflers, Pertronix
Flamethrower ignition, along with a very trick, active shaker hood
scoop presenting through the original metal hood! It produces an
estimated 350 horsepower for a perfect balance of street use and
eager performance when you want it!
The result is a true one-of-one Shelby-licensed prototype, blending
engineering creativity, period-correct inspiration, and early-2000s
continuation-car craftsmanship at the height of the Eleanor era.
Unlike replicas or tribute builds, this Mustang occupies a rare
space between concept car, prototype, and continuation Shelby,
representing an unrealized chapter in Mustang and Shelby
history.
For the serious collector, this GT350 Continuation Retractable
offers provenance, exclusivity, and historical relevance that
simply cannot be replicated. It stands as a fascinating "what might
have been" from the modern Shelby era, and a centerpiece-level
Mustang restoration worthy of the most discerning collection.
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