Two words: wealth and exclusivity.
There’s no enclave quite like a very rich one on the Californian coast to appeal to wealthy car collectors.
Car makers have wised up to that, realising this is where the real buyers are rather than at traditional car shows.
Instead, this year, plenty of premium manufacturers have flocked to Pebble Beach.
As premium brands, they are the most natural fit for this event. Yet Volkswagen – a more volume player - also chose to announce that the ID Buzz would go into production at this year’s Pebble Beach. Could there be a more non-Pebble Beach vehicle than a microbus?
Volkswagen boss Dr Diess explained the move: "There's nothing quite like the Pebble Beach concours. It is full of emotional designs and iconic cars - Ferraris, Lamborghinis, you name it.