The RX 400h is America’s first gasoline-electric hybrid luxury SUV. Lexus says it hopes to snare several thousand well-heeled ecologically aware early adapters who might otherwise not have considered an SUV. More likely it’ll grab conspicuous consumers attracted by the fab acceleration, luxury interiors, eco-trendy badging. Fuel economy is remarkable. MSRP: $49,185; Base warranty 4yrs/50,000miles; Powertrain 6/70,000: Hybrid system; 8/100,000.