The Porsche 911 GT3 is based on the current 911 Carrera.
Not surprisingly, this track denizen is built to keep things simple and
the weight down. The interior is a bit spartan, but refreshingly
functional. The 911 GT3 has a new all-aluminum chassis with a
lightweight yet stiff body, with independent front and rear sections
that can be adjusted by height, toe and camber.
Under the bonnet, the Porsche engineers went to town. The 911 GT3 has
a naturally-aspirated, 3.8-liter, 6-cylinder boxer engine, which is
derived from the 911 Carrera S (though they have few parts in common).
It packs 475 bhp (350 kW) at 8,250 rpm and maxes out at 9,000 rpm. Most
of the components were adapted or designed for the GT3, including the
titanium connecting rods and forged pistons, the crankshaft, and the
valve gear. With the lightweight chassis and body, this gives a
power-to-weight ratio of 3.0 kg/hp.
Among the ohe GT3 also sees the implementation of the fuel-saving electrically
assisted power steering. How that will affect the steering feel is yet
to be seen, but thankfully the same system fitted to standard 911s have
been rather decent to say the least.Another Porsche-first is the use of active rear-wheel steering. This
turns the two rear wheels into or away from the corner according to
speed, aiding stability and agilityther new driving dynamics features are larger 20-inch wheels,
electronically-controlled, fully variable rear differential lock and
the now-standard dynamic engine mounts.
