That is way cool. TDi swap anyone?

Whoa. That's something only a mother could love. Cool- yes, good looking- no. Looks home built.
My guess is that a local Brazilian commercial chassis manufacturer came up with these using VW drivelines but they weren't actually engineered by VW.
That thing must be horribly underpowered.
That would be beeotchin' to roll up in, if your kid was racing go-carts or small dirt bikes!