The times they are a changing, and the "web 2.0" age includes a different approach to marketing. Hence it should not be a surprise that Nissan is using avenues like YouTube and Twitter in marketing the LEAF vehicle. See "Some Nissan LEAF questions answered" for earlier coverage of how Nissan is using Twitter as a channel to collect and answer frequently asked questions.
More recently they have begun posting online video some of which is appearing on sites like YouTube.
Nissan LEAF - Electric Vehicle Battery: This one in the series focuses on the LEAF battery. (posted on the youtube account "nissanusanews")
Nissan unveils all-electric Leaf car