The 2003 Infiniti Q45 is part of the third generation of Infiniti's full-size luxury sedan lineup. Powered by a robust 4.5-liter V8 engine that pumps out 340 horsepower, it leverages a rear-wheel platform and employs a 5-speed automatic transmission. The sedan comes in two variations, base and premium. Standard features extend to Xenon high-intensity discharge headlights, an 8-inch info screen for navigation and audio controls, and a Bose audio system. The safety package includes frontal multistage airbags and standard antilock brake system (ABS). For 2003, Infiniti refreshed its exterior design, providing a more sleek and aerodynamic style to the Q45. The car also received a significant interior overhaul, delivering a more refined and luxurious experience.