Do not search for "Christine full movie upload" (illegal). Instead, search for "Christine 1983 Free with Ads." YouTube’s official movie channel often lists the film under its "Free" tab. You will watch the same HD print as the rental version, but with commercial breaks.
(1983) on the following ad-supported platforms, which do not require a paid subscription: : Frequently carries 80s horror classics, including YouTube (Movies & TV)
John Carpenter’s Christine is a story about obsession. Don't become obsessed with finding a free rip. Spend five minutes checking the legal FAST services, and you will likely find the 1958 Plymouth Fury purring at you in HD, completely free—just with a few commercials for fast food and car insurance.