That rendering makes me sick...not a single fluent design cue. Looks like the second coming of the Aztec.....
As for the Impala's blandness....I've heard it said more than once that the plain-ness about the car is one of its best traits. Those same people considered the Malibu flashy, and the Camry bulbous and weird.
Not that I agree...the car could definitely use a facelift right about now...