This is a good explanation of why to buy Porsche stock. They own 31.3% of Volkswagen but Porsche is selling at a $20 billion discount to the value of the Volkswagen shares they own.
The bet is 2 fold the first is that people figure out Porsche is actually worth more than its selling for and the price goes up and 2 that Volkswagen does well in the EV space and goes up. That point loops back to 1 and Porsche jumps up even more.
The upside is well worth the purchase. This is an investing layup.