ahead in which measure? not that I disagree, I'm biased towards Murica cars too, but more so the non-electric type, like CTS-V.
Ahead as in:
Only fully electric car with a real life practical range
Supercharger network
Buying direct from the factory (no middle men)
Over-The-Air updates
AutoPilot (semi) autonomous driving
Totally integrated concept: one store shopping for your Solar roof, Tesla Powerwall energy storage, and you car mobility
First with huge HQ touchscreen in dashboard, controlling nearly everything
It's only logical: Californication already influences the entire world with regards to software, smartphones, porn, fitness, movie, music, and now green cars too.
Even Toyota recently jumped on the electric train, years late, they missed such an important revolution completely :-)