Biodiesel cheaper than regular Diesel

I knew the move to Biodiesel would eventually pay off. For the first time last week, Biodiesel was less expensive than regular Diesel, $4.129 versus $4.219. Not hge savings, but it can stay like this if it were up to me. If things get more expensive, and I am sure they will, may be it is time to think about a fully electric or plugin-hybrid, like the Aptera.