For those that say the i3 is overpriced at ~$50,000, you are not factoring in state and local incentives, gas savings, discount off MSRP or the BMW alternate mobility program.
We have two i3s now. With some negotiation (20% off MSRP), $7,500 fed, $5,000 state incentive, I was able to Owners Choice (similar to a lease) our white i3 with a $50k MSRP for equivalent to $65/month (or $1500 for two years of driving). Factoring in about $200-$300/month gas savings, I'm saving at least $150/month for each one compared to driving a gas car. Plus no maintenance on BMWs for up to 4 years. With these types of numbers available, I don't know how people afford to drive their regular gas cars. They must love going to gas stations every week.
Also, with the i3 Flexible Mobility program, we can also borrow a conventional gas car, a 328 or x3 up to 14 days per year for FREE to go on long trips. In the past we would rent a SUV to go on week long vacations, this saves probably $400/wk in Hertz rentals.
A Tesla Model S would cost at least $1,000 per month with 72 month financing, more like $1300/month with the features they talk about all the time (85/90kwh battery, tech package, etc). They also didn't have some of the features that are in my i3s when we were looking last year like adaptive cruise control. That feature on the Model S didn't come out until October 2014.
The construction of the Model S is also pretty conventional 5000 series aluminum. Even the Ford F-150 now uses advanced 7000 series for strength and weight savings. I can see why Apple would be interested in the i3. It's carbon fiber reinforced plastic is at least a generation of ahead of other mass car manufacturers. The way BMW bonds extruded and cast aluminum to the CFRP in the drive module is also very impressive.
*Disclosure, I own enough Tesla shares to buy a Model S with my profits and enough Apple shares to buy several Teslas. I want both of them to succeed.