e.g. E.I. du Pont de Nemours (DuPont) 52.0.0.0/8 Ford Motor Company 19.0.0.0/8 Retained by Ford Prudential Financial 48.0.0.0/8 Retained and used like, why

e.g. E.I. du Pont de Nemours (DuPont) 52.0.0.0/8 Ford Motor Company 19.0.0.0/8 Retained by Ford Prudential Financial 48.0.0.0/8 Retained and used like, why does Ford need a /8 to make cars? a /20 of public IPs is more than enough for corporate and virtually all of their dealerships