Infiniti Q45 First Drive
Introduction
In the rarefied luxury class that includes the Lexus LS400 and Mercedes-Benz E430, the Q45 doesn't stand out. A lavish interior replete with the latest luxury features is a must, but Nissan's flagship sedan has a relatively cramped cabin. The Q45's 4.1-liter V8 is strong and smooth, however. Front side air bags and front safety-belt pretensioners are standard, as is traction control, especially useful with the Q45's rear-wheel drive.