I still can't find what separates the CDI from the CDI BlueEfficiency.... the power is near the same, one must just be a bit cleaner burning then the other.
In Europe the comfort suspension is standard. If you buy a BE version here, you get the lowered sport suspension. Besides that you get a six speed gearbox with a different gear ratio, shift advice, reduced drag tires, a smaller gastank, more closed front of hood and several aerodynamic elements under the car.