The 2013 INFINITI G37 includes sedan, coupe, and convertible body styles. Each comes powered by INFINITI's fantastic 3.7L V6, which in the sedan and convertible produces 328 hp, and in the coupe 330 hp. A 7-speed automatic is standard, though a 6-speed manual is available on Sport models. Rear-wheel drive is standard, while all-wheel drive is available in the sedan and coupe. G37 convertibles feature a 3-piece power-retractable hardtop that opens and closes in an unconventional clamshell way to minimize bulk when folded. G37 sedans come equipped as Journey, xAWD or Sport trims. Convertibles are equipped as either base, Sport or IPL trims. All INFINITI G models are very well equipped--even base models, which feature power everything, 17-inch alloy wheels, push-button ignition, leather seating, xenon headlights, speed-sensing wipers and an AM/FM/CD stereo with MP3 compatibility and XM satellite radio. Journey trims add heated side mirrors, dual zone automatic climate control, heated front seats, Bluetooth hands-free connectivity, a rear view camera and an auto-dimming rearview mirror with integrated compass and HomeLink universal transceiver. G37x all-wheel drive models start off like a Journey, but add "Intelligent" all-wheel drive, which instantly adapts to changing road surfaces and conditions by sending power to the wheels that need it most, enhancing traction and control in less-than ideal driving situations. Sport models are highlighted by a viscous limited-slip differential, a specially tuned suspension, bigger brakes at all four corners, special exterior touches, a power moonroof, 10-way seat adjustability for the driver, dual seat memory and aluminum pedals. Sport trim also features a Bose premium stereo system with a 9.3GB Music Box hard drive and 7-inch display for media playback. A Premium Package includes the Bose audio system, power moonroof and more, while a Navigation Package adds INFINITI Hard Drive Navigation System with a touch-screen, Lane Guidance and 3-D building graphics, plus the 9.3GB hard drive and 7-inch media display. Buyers looking for even better performance may prefer one of the IPL models. IPL stands for INFINITI Performance Line and both coupe and convertible benefit from numerous performance enhancements. The engine in the IPL is tuned for more power at a higher RPM while the suspension is lower and stiffer. The interior of the IPL features red stitching and aluminum accents as well as a 12-way power adjustable seat and most of the luxury goodies available on lesser Gs. The exterior of the IPL is enhanced with the addition of 19-inch wheels and more aggressive front and rear fascias.