Here are a few examples of the features that come standard inside the CLA 250 but not the BMW 2 Series - 14-way power-adjustable driver’s seat with memory settings, Forward Collision Warning with Automatic Braking (Active Brake Assist), Driver attention monitor (ATTENTION ASSIST®).
Yes, the MPG of the CLA 250 & the BMW 2 Series is the same non highway but on the highway the CLA 250 wins. Why is this important? Well, if you plan on driving to work or going on road trips chances are your going to be using the highway far more than often than not.
The CLA 250 has a starting MSRP of $32,700, while the BMW 2 Series starts at $34,800. That's about a $2,000 difference - Especially consider all the amentiies your giving up by going with the BMW 2 Series choice.