According to Whois records at DomainTools, it looks like Apple has registered the Apple.Car domain name. The domain name has a creation date of December 9, 2015, but it appears the company took possession of it just yesterday.
The .Car domain extension is operated in a partnership between the XYZ (Daniel Negari’s company) and Uniregistry (Frank Schilling’s company). The partnership also operates the .Cars and .Auto domain name extensions. It looks like Apple also secured the Apple.Cars and Apple.Auto domain names as well.
As of right now, Apple.Car, Apple.Cars, and Apple.Auto