Ferrari is owned by Fiat and Lamborghini by the Volkswagen-Audi
Group.
Ferrari don't have any 4WD drivetrain of their own, and unlike VAG,
they won't think of sharing components with lesser models. VAG have
been using 4WD as a unique selling point in their road-going cars
for a while now, and in real life, it means there is drive to all 4
wheels - which is useful in bad weather and accelerating out of
corners.
The Stig drove a Porsche 911 C2 and C4 around the Race of Champions
circuit at Cardiff last year, and the C4 was only a tenth slower
despite the weight penalty.
RWD cars inherently have a better front-rear weight distribution.
And since the front wheels don't have to deal with both forward
propulsion and steering like FWD cars, they don't run out of
front-wheel grip (i.e. understeer) as easily.
The large engine in the R32 endows it with lots of torque, and 4WD
drivetrain reduces the chance of torque steer (when the front
wheels start turning on their own under acceleration) occuring.
