Back in my GM daze I used to wonder if GM employed an "ugly stylist". Back then cars were on a three year cycle: after three years they would be restyled. Looking at a number of cars over the years I began to think that the third year was when the original clean design would be presented and the first two would be subtly "uglified"/decontented to maintain sales momentum for the third year. The example I like to use is the 63-65 Buick Riviera. For 63 and 64 the head and taillights were exposed, in 65 not only did the lights move into the bumpers and hedlights become hidden but it got the turbohydramatic for the first time. Or take the 68-70 Skylark. 68 & 69 got the "swoop" chrome on the side. In 70 the side became clean.
Just an observation but see that the 2013 WK2 gets a number of things that were missing such as LED taillights. Wonder if they will be clear & the grille body color.
One of these is a diesel.