The GTM Spyder is the convertible version of the GTM Libra. The Spyder came three years after the launch
of the Libra, benefiting from the engineering which had been
developed during the creation of the Libra. Many of the detail
components used on the Libra are carried through into the Spyder,
plus many more that have been made specifically for the mid-engined
The original concept of a minimalist design, low component count,
with emphasis on performance and aesthetics was retained during
the creation of the GTM Spyder.
The GTM Spyder, although almost technically identical to the
Libra, was completely styled by Richard Oakes. A further two
years development were put into the Spyder to create a true
British open top sports car. The central monocoque of the GTM
Spyder is the most dramatically changed moulding requiring major
modifications to the closed box sections within the tub to replace
the rigidity lost from removing the roof section. Further strengthening
to the floor pan was added along with a redesigned rear bulkhead.
In all about 30 kilos have been added to the weight of the central
tub, unfortunately the additional strengthening and modifications
to the rear bulkhead have removed the option of fitting the
most powerful engine option, the 2.5 litre V6.