

This is why I bought a Q4 and why I went with staggered. This peculiar clutch operation strategy, enabling pure RWD driving in normal conditions, allows for high-efficiency and reduced fuel consumption in comparison with other AWD solutions on the market. The Alfa Romeo Q4 active torque distribution system (Active Transfer Case or ATC) also has unrivalled input/output torque levels in its class, being capable of accepting up to 5000Nm input torque from the transmission and deliver (ratio 1:1) up to 1200Nm to the front axle pinion via chain transmission which ensures that ensures quiet, efficient reliable operation thanks to its pumpless design. This design is unique in the market, able to guarantee extremely dynamic, long-term driving without overheating. Q4 can withstand intensive use, e.g., driving to the limit on a race track or on low grip surfaces, dissipating very high energy in the clutch assembly without adding external cooling systems. Reaction times are a reference in its class: the system can send almost 1000Nm to the front differential pinion in under 150 milliseconds, and decrease from 1100Nm to 100Nm in barely 120 milliseconds. This design enables you to accelerate earlier out of a turn than an AWD vehicle without this feature, meaning using the same gear ratios in front and rear axles. Even on variants without staggered tires, this allows the vehicle to come out of a corner faster thanks to early vehicle stabilization.

To further enhance vehicle dynamics and handling Alfa Romeo has opted for a unique feature within its Q4 System: different gear ratios between the front and rear axles.
