Quite a bit of effort has been put into making sure that the CLA slips through the air as smoothly as the CLS. The claimed drag coefficient of 0.23 makes the CLA the slipperiest series production vehicle ever -- generating less drag than even the Prius.
The CLA will come standard with Mercedes-Benz's Attention Assist system, which monitors the driver's behaviors and alerts the driver if a lapse of attention is detected or if a break from driving seems necessary.
Also standard is the Collision Prevention Assist system, which uses forward radar sensors to detect and warn the driver of imminent collisions at speeds above 4 mph while prepping the brakes for an emergency stop.
The standard CLA250 sits on 17-inch wheels, but an optional Sport package bumps them up to 18-inch AMG rollers. Sport body styling and upgraded front brakes complete the package. The sport suspension is standard.
An optional Driver Assistance Package will add the Lane Keeping Assist system, the Distronic adaptive cruise-control system, blind-spot monitoring, and the Parktronic autonomous parallel-parking system.
The fit and finish appears to be of typical Mercedes-Benz quality -- which is high -- but the standard, floating screen at the top of the center stack looks a bit too "aftermarket" for my tastes. In standard CLAs this screen will be a 5.8-inch unit, but stepping up to a Multimedia package bumps the size up to the 7-inch screen pictured here.