The ATS aligns Cadillac’s sedan line-up with the import competition. Before the ATS, the smallest sedan in Cadillac’s stable was the CTS, a well-finished and enjoyable to drive car. But like many GM products, the CTS is a “tweener”—dimensionally and price-wise, it straddles two different classes. For example, you could compare it to a BMW 3 Series, or you could compare it to a BMW 5 Series. Neither of which can be considered entry level.

Instead, the ATS gives Cadillac a true entry-level car that aims directly at the BMW 3 Series or the Audi A4 or the Mercedes-Benz C-Class or the Lexus IS or...suffice it to say that there is plenty of competition in this market. The Cadillac hopes to distinguish itself by the driving dynamics and interior amenities. While GM’s recent products have typically been on the heavy side, GM stresses that the 3,400-lb ATS is the lightest car in its class.

The ATS is built on a rear-wheel-drive platform with optional all-wheel-drive. There are three engines: a 2.5-liter normally aspirated four, GM’s ubiquitous 3.6-liter V6, or an all-new 2.0-liter turbo four that makes an impressive 270 horsepower from its small displacement. A manual transmission is available—necessary for enthusiast cred in this class—even though most buyers will get the six-speed automatic.

Inside is the typical stylish Cadillac interior. Cadillac ramps up the tech content with the optional CUE dashboard design. It eliminates many conventional knobs and buttons, replacing them with touch-sensitive flat panels and configurable screens that react to the swipe and drag motions of your smart phone or tablet. We’re worried about how distracting or involved this is when you drive the car. After all, simple knobs work awfully well. We’ll find out when we buy one this summer.

Until then, enjoy our auto show video. And check out the Cadillac ATS in our Detroit show coverage.