May well be. My late dog would jump into any open car door and give the driver a “Let’s ride!” look. The mailman found it particularly amusing.
And then he finds another cat in his van! He must have something special...
Reminds me of my black Rastus, I have to be very careful to watch him if there’s a tradesman in the street, he’s in the habit of investigating the interior of removalist trucks for example...and one day he jumped into a box on the back of the fruit and vegetable delivery truck, and happily sat there in the tomatoes while the man did his delivery run down the street.
At the moment he’s in love with the neighbour, spends most of his days following the man around the garden smooching up to his legs.