All it took was a week of driving the 315-horsepower V-8 2003 Infiniti FX45 ($44,225 plus freight and options) to realize that this vehicle is truly a Corvette in SUV clothing. A must-have option is the technology package that includes the RearView monitor, navigation system, and 20-inch wheels. For more auto info, log on to www.insideautomotive.com.