Audi is also betting on technology to give the A4 flexibility in the marketplace. Chiefly, that's by way of an option dubbed Audi Drive Select. That's the umbrella term for a set of functions that tune the A4's Continuous Damping Control (CDC) suspension, dynamic steering and engine and transmission responses. CDC can lower ride height and modulate the amount of damping in each shock from stiff to boaty. Dynamic steering adapts the steering ratio and resistance depending on need or desire. At slow speeds or winding roadways, the steering stays sharp and crisp, but on the freeway, the ratio flips and inputs generate progressively less-intense turning reactions. The system also alters engine and transmission responses from languid to punchy. Drive Select settings include Comfort, Auto or Dynamic, but we found a nice, predictable track-friendly mix by combining dynamic engine, transmission and steering settings with the comfort suspension setting. It's all controlled with Audi's answer to BMW's much-maligned iDrive system, called the Multimedia Interface (MMI). Sure, it all adds up to what software engineers like to call "feature creep," but in the luxury market the mantra is (or should be) gadgetry is king.