Currently what car models are using synthetic oil from the factory?Who's suppling the synthetic oil?

I know the Corvette requires synthetic oil, it requires Mobil 1. The newer style GTO and Camaro's/TA's also used the same. They have a plaque in the engine bay that says to use it, mostly the LS-series motors...Currently what car models are using synthetic oil from the factory?Who's suppling the synthetic oil?
cadillac uses mobil 1Currently what car models are using synthetic oil from the factory?Who's suppling the synthetic oil?
I know Ford and GM cars are. They use Mobil.
alot of modern cars do heres just some - vw, audi, skoda, bmw, renault, mercedes %26amp; ford - i could be more specific but i dont have until next week - if theres a certain car model your intrested in finding out about email me or carrepairshelp@yahoo.co.uk (thats my works email)
the corvette uses it from the factory and they use mobil 1.