When you show us what you have then and only then will you shut down your critics. Mean while the carbon taxes on diesels is just a drop in the bucket as far as costs are concerned. Might surprise you but 0 emission units are already on the west coast (California) And more than one big over the road truck companies are offering LI tech trucks with 200 to 250 mile range with 2 hour charge cycle. As far as the LI tech is concerned, there has been a lot of progress on the Tech. A lot like the micro chip innovations , the tech is getting better every day. 80 t0 90 thousand LB lifts are already out there.