The BMW X3 enters its fourth year of production flush with success, but there's more competition than ever among the smaller, more fuel-efficient SUVs. BMW's response is a stronger engine, revised styling, and more safety features, standard equipment and options.

The 2007 BMW X3 is available only with the new engine, a 3.0-liter six-cylinder. It also offers more torque and better acceleration than last year's engine of the same size yet at no cost to fuel economy. A six-speed manual transmission is standard, and a new six-speed automatic is a no-cost option and replaces last year's five-speed automatic.

The X3's drivetrain is equipped with BMW's xDrive all-wheel-drive system, Dynamic Stability Control and Hill Descent Control, revised for 2007 to give it even better grip and control in less than favorable conditions.

The X3 is quick and fast, and almost as fun to drive as any of BMW's passenger cars. The xDrive puts it at the head of the class when weather or road goes north. It's roomy, both for passengers and cargo. And just as important, it's replete with safety features, both active and passive.