I just moved to a new neighbourhood and there's a guy where he owns maserati gt, f430 spider or 430 16M scuderia, lancia delta

I doubt pilot can afford these cars.
Maybe captain can only afford to drive a normal Jaguar coupe.

Here are a few businesses that will supply you supercars if done well :
Constructions Materials - No matter how the world revolutionize and evolve, houses will still remain and how do houses built? Yes, by all these materials.
Logistics & Transportation - If don't have transportation, how goods can arrive your doorstep?
App/Software Development - In the future, most likely we'll be surrounded by all kinds of software that ease our jobs. For example, smartphones. It wasn't that developed back then, but look at them now.

Belongs to a royalty iinm

There is a number plate thread in LYN. There you can see this car featured at there. Same owner also owns many supercars with "1" plate.