The sounds may be from a Jeep, even that specific Jeep, sure, but they've been recorded and reproduced by a computer. It's been proven. If you take the audio from the video, split it into a stereo track with something like Audacity, and compare the two by zooming very closely on the waveforms, they match perfectly. Humans cannot do that. So, in essence, it's not technically fake, I guess, but every sound you hear is the same one. For instance, the sound of the guy locking and unlocking the door is just two sounds, one for the unlock, one for the lock, being repeated.
