At the 1993 Formula One Grand Prix held in Monte Carlo, Italdesign introduced a new, slightly redesigned version of the C2 called C2 Spider. The car had removable glass panels instead of the semi-gullwing doors featured on the coupe, turning it into a roadster along with a removable engine cover. The removable parts were housed in the luggage compartment in the front of the car and could be quickly reinstalled. A roll bar in the colour of the car was fitted in order to reinforce the chassis to compensate for the loss of removable glass panels. The intake manifold of the engine was redesigned in order to allow for open air operation. The car was fitted with an enlarged version of the 5.0 L M70B50 V12 engine featured on the Nazca C2 coupe with the capacity increased to 5.7 L and the power uprated to 380 hp (283 kW; 385 PS), a 6-speed manual transmission was installed instead of the 5-speed gearbox of the coupe to better cope with the increase in the power.
