I am not a 68 guru

For sure bucket seats and console

2+2's are basically a sporty Parisienne.   68 2+2's have the fender louvers behind the front wheels, and would have bucket seats and a console.  The interior trim is very similar, if not the same, as a 68 Impala SS.   2+2 actually stands for 2 people in the front, 2 people in the rear.   Strange, my 1970 2+2's have 3 sets of seat belts in the rear.

Pontiac 2+2's were available in the US from 1964 to 1967 (based on a Catalina), and in Canada from 1967 to 1970 (based on an Impala chassis).  While there is a lot of similarities between Canadian 1967 models and 1968 (interior and rear end of the car), there is also a lot of similarities between 1968 models and 1969 (mainly the nose).  These were the days when technical and styling advances were added to the car each year. 

From what I know the sporty full size Can Pontiacs kind of went like this:

1964  Custom Sport (Can Pontiacs equivalent to Chevy's SS-Badges Buckets etc)1965  Custom Sport (Same)
1966 No Custom Sport separate model - it was a Parisienne option.
1967  2+2  (SS equivalent-Badges Buckets etc. separate model again
1968  2+2   (same)
1969  2+2   (same)
1970  2+2   (same)


If I'm wrong please correct me.