The Infiniti Q45 is a flagship luxury vehicle and designed to encompass a wide and long stance, offer ample room for luggage and passengers, while still delivering performance and making it look good. The Q45 is a rear-wheel-drive sedan powered by a 4.5-liter twin-cam V8. This all-aluminum engine produces a very healthy 340 horsepower and 333 pound-feet of torque. The only available transmission is a five-speed automatic with a manual shift mode. The vehicle comes with a myriad of electronic options and features including tire pressure monitors, xenon high-intensity discharge headlights, DVD-based navigation, voice control for the climate control system, an eight-speaker, 300-watt Bose stereo with six-disc CD changer, and heated front seats.For 2005, the Q45 is completely and beautifully redesigned with new styling and new features.