The Infiniti FX (QX70 from 2013) is a compact crossover SUV segment E produced by Japanese automaker Infiniti since 2003. It is a five-door five-seater, front engine, automatic gearbox five-speed, rear-drive or all four wheels. Some of its rivals are the BMW X5, the Mercedes-Benz M-Class, Porsche Cayenne, Range Rover Sport, the Volvo XC90 and Volkswagen Touareg.
The FX has a monocoque construction, which uses the same platform as the Nissan 350Z and the Infiniti G and Infiniti M current, unlike the Nissan Murano, which uses the Nissan Altima.
The two petrol engines are a 3.5-liter V6 engine and 284hp of maximum power ("Infiniti FX35") and a 4.5-liter V8 and 325hp ("Infiniti FX45") and from 2009 began a renovation, which begins with the new V6 engine is now a 3.7 liter engine of 320cv, another 5.0-liter V8 with 390HP and 3.0-liter V6 diesel and 230hp (European market). Both have four valves per cylinder, two overhead camshafts per bank at the head, variable valve timing and indirect injection.