In fact, both FX models are based on the same rear-drive mechanical platform as the Nissan 350Z and Infiniti G35 coupe. They are not based on any Nissan truck, nor, as some folks seem to assume, on the similarly sized Nissan Murano SUV. (The Murano shares its front-wheel-drive architecture with the Nissan Maxima and Altima.)
Deriving an SUV from a sports car, however, does lead to some compromises. While the BMW X5, Mercedes-Benz M-Class and Porsche Cayenne each deliver varying levels of off-road capability, all are better suited for the rough stuff than the FX. Infiniti designed the FX primarily for on-road performance, with an available all-wheel drive system intended primarily for improved handling and performance in the snow. Although beefed up a bit for SUV duty, its chassis is still not as heavy as that of a true off-road truck, and that of course reduces the weight its powerful engines have to move.
Infiniti also equipped the FX with enormous (optional) 20-inch wheels and tires; race car-sized brakes; and a tight, handling-tuned suspension. The goal was to make the FX as fun to drive as a sports car; Infiniti achieved that, with compromises in ride comfort, space and rock-climbing ability. The end result is a car-based crossover SUV that's full of character and exciting to drive on sports-car roads, but also one that has a stiff ride, a tighter cockpit than some of its competitors and flamboyant styling. But that may be just the thing for committed sports-car enthusiasts who need to lug their winter toys through the snow belt.
FX was launched for the 2003 model year. 2004 brought some upgrades. Safety is enhanced for 2005 with roof-mounted supplemental side-curtain airbags as standard equipment, which provide rollover protection for both front- and rear-seat occupants. Also new for 2005: optional intelligent cruise control, and a Lane Departure Warning system, the first of its kind on a U.S. passenger vehicle. Next Page