I assume it just checks against a database that Safari downloads locally. If so, it would mean Google isn't seeing what URLs you're wanting to go to, but they would be able to see what IP address you've used to download the database.
That's the only part of the video that seems wrong to me. I'd think a 1.6 tonne vehicle wouldn't be an issue especially since we're talking about it being 1/4 the weight with 50/50 load balanced car and the force spread out over the entire front panel area. Wouldn't that be force per square mm than a nail being hammered?