Loz Blocks

I do agree they would be fun to build if these designs are to be used for the final sets, especially since they already have the right wheels to be used on track. However, I do think it would be better to buy them just for the faces and/or other parts and use them to improve existing MOCs of these characters. I have a strange feeling these prototypes were built in LEGO Digital Designer, rendered in some other program and edited (Photoshopped?) to make the faces, numbers and splashers. They appear to have been made by talented designers because they use a lot of SNOT for what would normally be done with stickers, decals or prints.