Tesla started taking orders for the Model 3 last week, and the results were remarkable. In 24 hours the company took $1,000 deposits for 198,000 vehicles. By end of Saturday the $1,000 deposits topped 276,000 units; for a car not expected to really be available until 2017. Compare that with the top-selling autos in the U.S. in 2015: Remarkably, the Model 3 would rank as the sixth best-selling vehicle all of last year! And with just a few more orders, it will likely make the top five - or possibly top three! And those are orders placed in just one week, versus an entire year of sales for the other models. And every buyer is putting up a $1,000 deposit, something none of the buyers of top 10 cars did as they purchased product widely available in inventory. Although this has surprised a large number of people, the signs were all pointing to something...