Alfa Romeo Spider Studio

The 3.2 V6 Q4 engine is equipped with an exhaust system that includes a first group of catalysing elements relatively close to the cylinder heads to reduce the emissions level at the start of operation. Another two catalysts under the floor-pan and four lambda sensors complete the system, so that the engine respects Euro 4 limits without adopting special systems such as secondary air or electric heating.


Ignition is provided in this engine by a single sparkplug per cylinder (Alfa have dropped their famous "Twin Spark" technology. And that is because direct injection combined with 4-valve-per-cylinder geometry creates a mix that tends to be more concentrated at the centre of the combustion chamber.

The new Alfa Spider equipped with the powerful V6 engine offers the same Q4 all wheel drive system with three differentials known from Brera. The central differential is a Torsen C that encloses the front differential for the first time, a solution that ensures considerable benefits in terms of dimensions, weights and also performance. It uses the forces set up by the front differential to increase its locking effect (35% during traction and 45% during release) to set up a certain self-locking effect on the front differential as well (up to 20%). By doing this it improves traction and cornering stability. The basic torque distribution of the Q4 system is mainly to the rear (43/57).


The Alfa Romeo Q4 four wheel drive system implies permanent, dynamic torque distribution over all four wheels to achieve the highest levels of active safety. The most significant benefits of the Q4 system are:


The Q4's four wheel drive with advanced Torsen C self-locking differential (Twin Diff.) makes it possible to achieve improved roadholding, driving satisfaction and smooth responses.
Preferential distribution to the rear axle also adds to the driving satisfaction because it makes the car easier to handle while ensuring maximum stability when the car suddenly veers at top speed o