This is all slightly generic information...meaning I'm talking about the genetics, not breeder specific crosses.
Sour diesel, sour d...etc, etc, are all based off of a skunk #1 pheno (or a cross with the same skunk pheno) way down the genetic trail. Skunk #1 was also a building block for jack h, cheese, and c-99, which was formed from Cimderella 88 and princess, which was a pheno of, you guessed it, skunk #1.
Don't know if this explains anything really, other than that smell is in the genetics.
If I've typed anything above that is incorrect or completely off base, please correct me. It's just a hunch. Or, it's the hash plant I smoked for lunch. Wow!