I liked the roof swap but I don't really like the headlights. I think it looked better with the original single round lights. I'm not sure about the rear end because they didn't give a clear picture of it during the show or in their online gallery. It also has this silly little shark fin spoiler looking thing at the back corners.
I did like the veggie oil conversion, but don't like having to mix the oil with 50% diesel, probably because used curry oil contains many powders and is much dirtier than oil used for cooking french fries. I've seen kits for volkswagens that allow pure veggie oil to be burned, although they require a small (1-2 gal) diesel tank for starting the engine and warming the veggie oil and when turning it off to clear the veggie oil lines.