Elon tweeted this on the 20th as a teaser for the battery swap event. The wheels on the Model S that was featured in the picture seemed smaller than the 21s and larger than the 19s. They also had a silver ring around them. Could these be 20s? is the silver ring around them just the glare from the stage lights or a new wheel design? It would be really great to have more options with wheels for the Model S, as most Audis, Mercs, and BMWs have 4-6 wheel options. Are they new, or is it just me?