OK this is interesting news, but what token do they use to enforce the blockchain is cryptographically sound? The article is silent in that regard, and as far as I know, without a token you really cannot secure your blockchain's immutability.
There is no need for a token.
What would a token represent, why would somebody transfer tokens?
It's simple, the block chain is held and maintained by the RTA, instead of transactions is stores vehicle data.
You don't check the balance in an address, you check the the vehicle history.
No real mining, no chance of a 51%, a Sybil or a spam attack.