To Bob and others still concerned on this subject,
Are the 1966 Canso SD interior seat covers same as 1966 Nova SS?
Ans: Yes, but the door panels are different on the '66 Canso.
Are the 1966 Canso SD interior seat covers same as 1967 Nova SS?
Ans: No.
The 1966 Canso SD has 8 die cast louvers at top front of the front fender.
Ans: Actually, they have 9 louvers per side....
The 1967 Canso Sd has 4 die cast louvers at the back of the front fender.
Ans: Yes
Only 1966 Canso SD has SD badge on glove box door, not the 1967?
Ans: Yes
1967 Canso SD had rocker moulding on each side and a chrome die cast aluminum moulding on the 1/4 panel at the bottom behind the wheels.
Ans: Yes, but I believe the rear moulding was chromed potmetal.
Both 66 & 67 have 3 name plates on the car exterior that say "Sport Deluxe", 1 on each qtr. panel at the rear and 1 on the trunk lid on right side
Ans: Yes, but the '67 Canso has the Canso script on the front fender. The '66 Canso has the "Canso" script on the rear quarter with the "Sport Deluxe" emblem under it.
both have a small "Canso" emblem near the top of the interior door panels on the white stripe.
Ans: "67 Canso was the only year to have this and the '67 SD may be the only door panel in '67 that had the white stripe.
Both SDs body wise the same with backup lights in back bumper.
Ans: Yes
Both SDs headlight bezels are same for both years, different on Novas.
Ans: Yes.... both are the same as the '66 Nova.
Parking lights in front grille for 67 SD, in front bumper for 66 SD.
Ans: Yes, the '66 Canso has clear lenses.
Both 66 & 67 SD had distinctive trim and identification, all vinyl bucket seat interior in red, black, gold or bright blue; center console with automatic or 4-speed transmission, electric clock, simulated louvers on front fenders, wheel discs (from the Canso SD brochure).
Ans: Yes, disc brakes were an option though, not standard on the SD.

There was a lengthy discussion on StevesNovaSite 2007 forum about 66-67 Canso SD emblem differences, mostly by 66 Canso SD Girl & Glen's67sd, see link below:
http://www.stevesnovasite.com/forums/showthread.php?t=61380
:yes:The Canadian Poncho forum also had a lengthy discussion with Sean on this same subject 9 days ago! See the links below:
Canadian Poncho Forum:
www.activeboard.com/forum.spark?forumID=118110&subForumID=409062&p=2
rear quarter emblems and trunk emblem:
www.activeboard.com/forum.spark?aBID=118110&p=3&topicID=29526204
grill emblem:
www.activeboard.com/forum.spark?aBID=118110&p=3&topicID=28739727
More nice pics of a Red 283ci/PG !966 Canso SD below:
http://www.southernstylecruisers.com/wp/?page_id=201
What else does Sean want?
Gary