and here it is:
Originally Posted by BMW North America Product Communications
Leather is part of the new Value Package for the 328i Sedan, which effectively makes it a no-cost item. However, the Value Package is not offered for any of the 335 models, including i/is/d and Convertible. I further confirmed that Leatherette is still listed as standard on the pricing/ordering guide for 335 models. Hope that helps.
Canada may package theirs differently than the US.