Alfa Romeo 4C Spider has been unveiled in prototype form at the Geneva motor show sporting a canvas roof and different headlight, wheel and exhaust designs to the coupé. It will go in to production in early 2015.
says the car’s weight gain has been limited to 60kg over the coupé
thanks to the use of a lightweight canvas roof plus carbonfibre rollover
hoops, spoilers and windscreen frame. Alfa says it has crafted the
aerodynamics of the car to minimise roof-down turbulence.
dual-stage central exhaust system uses titanium and carbon tailpipes and
has been developed by renowned motorbike racing exhaust manufacturer
Akrapovic, which has worked in MotoGP, Superbikes and Motocross. It has
an electrically operated valve system that can improve performance and
enhance the exhaust note at the push of a button.
changes are notable for focusing on two areas of the coupé that have
drawn the most criticism so far. It is not clear, however, if the new
carbonfibre clamshell headlights and milled aluminium wheels (shod with
bespoke Pirelli tyres) are set for production, or if the changes would
also be applied to coupé. The 4C Spider concept's bodywork is finished
in three-layer gloss white, which helps emphasis the car’s sculpted
shape and resolved surfaces.
The 4C Spider is otherwise identical
to the coupé, with power coming from the same four-cylinder,
all-aluminium, 1750cc turbocharged petrol engine which drives the rear
wheels via a six-speed, dual-dry clutch Alfa TCT transmission. Alfa says
0-62mph takes 4.5sec and top speed is in excess of 155mph – the same as
the coupé. Weight distribution also remains 40:60 front-to-rear.
Thanks to: Autocar