I just don't know. It all seems needless, unnecessarily complex and over-tech. It is like killing a fly with a cannon. You could do that, but why? For instance, have a closer look at this use-case:
Well, I just handle my car keys to my spous and we are done with it. Will we now need a smart contract to do that? Luckily, we don't own Porsche.

The whole point of this is autonomous cars do not hacked by hackers right? I'm not mechanical genius, so could anyone answer my question?

oh, and is this going to raise price of porsche?

The blockchain is a decentralized, incorruptible, public ledger of all cryptocurrency transactions and has many uses cases, depending on the industry. In cars its used to improve the tracking system of independent vehicles or the driving capacities of them. Porsche noticed one week after Volkswagen introduced their plan in partnership with IOTA.

Yes recently I entered a few discussions in a few threads with forum members on that particular subject of using a blockchain to track stuff, exactly a database use-case for me. They were arguing that you don't need a token, but I am not convinced. Without a token it is just a database.

With a token, on the other hand, you at least have additional level of cryptographic credibility behind your data, what may add additional value to your database and to your clients. I recently thought of meat or grocery manufacturing and trading supply-chain blockchain, where clients could scan the qr-code on the piece of meat they are about to buy. They would know what farm the particular piece of meat came from, the date and time the cow was butchered, well, they could even track the life events of the cow! Or the transport temperature of the piece of meat! There, I will argue, I can see the added value of the immutable blockchain. But only if it is immutable, i.e. the manufacturer cannot easily prolong the shelf life of a piece of meat by claiming the cow was butchered later (by doing an update on a database or a blockchain).

Sorry to have deviated from the Porsche blockchain so much...

It's a discussion about the implementation of the blockchain, we don't have to stop at Porsche

Your example just reminded me of another ICO that claims it will combat fake drugs.

The blockchain can't do that. Neither can it prevent rotten meat from entering the supply store.
The qr code will be provided by the guy that packs the meat or produces the drugs.
Just like the official stamp now from the veterinary or that stamp that is added to cigar packs.
If it's fake it can be fake now and it will be fake even with an address in the chain.
They will just print another qr code and put it on the packet...how are you going to know it's real or not.

But coming back to the Porsche I really don't see any use in it...
A simple app that would allow you to ask for the fingerprint of the guy that gets to drive your car is overkill enough.
Tokens is paranoia

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As long as the blockchain can't really exist in reality, there is no way a real product is tied with the same security as a transaction for example, it is going to be abused.
Controls are happening even now, nothing will change. They fake these labels why wouldn't they be able to fake one matching the blockchain? This is the weak link, and it is going to remain weak no matter what.

Second, if you have a stupid law (most countries have it not only yours), that unless it is proved by court that the products were dangerous, the manufacturer or the reseller can indeed sue the state.
In a really rotten country, this has also some good parts.
Imagine the competition paying a few thousands to some health inspectors and driving you out of business...