They did though develop the Tipo sedicivalvole, which was faster than the Strada Abarth
Hmmmm. Faster? ... Top speed only
Stilo 2.0ie 16V: 0-62mph @ 8.4s : 128mph : 130 ft-lbs torgue
Strada Abarth : 0-62mph @ 8.0s : 122mph : 130 ft-lbs torque
Yes were are talking minute differences in terms of numbers but from a pure point to point cross country / terrain / etc. (even race circuits) the good old Strada Abarth is respected as "the car" for overall performance in handling, tractability and HUGE flat torque band coupled to its close ratio gearbox.
A specification never quoted is "leg shake". No seriously
I've owned and driven the following performance Fiats:
127 Sport, Strada Abarth (still have), Punto HGT, Barchetta (still have), Stilo 2.4L Abarth, Coupe 20V.
Of all of these the only one that delivers the adrenalin and leg shake is the 130TC.
Even on race tracks with 500+BHP Cosworth and Metro 6R4 and Ferrari 355 the only car to make my leg shake is the 130TC.
This is a fun post by the way.
As far as I'm concerned the Fiats I have mentioned, PLUS the Tipo 16V, are all great examples of Fiat producing performance cars with fun & serious characteristics to fire up the driver and enjoy the Italian buzz.
Sadly the current Fiat range is just FLAT, BORING and purely orientated around sales and revenue.
Most car companies these days can still provide the big sellers at good prices but also have one or two real performance models on the books. These may not make money but they keep the general public and enthusiasts well aware of what is available even if they don't want it.