According to the billionaire, cars can speed up to 150mph during a ride inside the tunnel. However, guests at demo rides were testing the tunnel in a Tesla Model S at 40mph.
WATCH: @elonmusk complained about “soul-destroying” traffic in LA — so he created a tunnel (eventually there will be a network of tunnels layered underground). Here’s a demo pic.twitter.com/veBElnZr40
— Joel Franco (@OfficialJoelF) December 19, 2018