"Model 3 is not version 3 of our car," he said. "We're probably on version 4 of Model S. And Model 3 will also be version 4. . . . It's a little confusing. One is a letter, and the other is a number."
It's unclear just how many consumers may have been confused, or perhaps put down a $1,000 reservation deposit for a Model 3 they thought would be as sophisticated as the Model S. A Tesla representative didn't immediately respond to a request for comment.
In terms of actual differences, the Model 3 is smaller than the Model S. It lacks the large dashboard with instruments and buttons that should be familiar on more conventional cars. It is expected to weigh less, possibly enhancing handling at a slight cost to battery capacity or performance.
One possible source of the confusion could stem from Tesla's unconventional development strategy. According to Musk's decade-old master plan, Tesla's initial goal was to produce a very expensive sports car and then a slightly less expensive sedan, before finally turning to a low-cost mainstream electric vehicle. Because developing and refining technology is expensive, the idea was to churn out a few high-priced cars at first to help pay for the design of the cheaper, more ubiquitous ones.
But when it comes to other gadgets and gizmos, consumers have come to expect that the latest actually is the greatest. So Musk is being forced to do some customer education on the fly.
"Given you can't actually build or configure a Model 3 yet, the confusion is somewhat understandable," said Jeffrey Osborne, an industry analyst at Cowen & Co.
On Wednesday Tesla released its first-quarter earnings report, showing greater-than-expected losses but somewhat higher revenue, at US$2.7 billion for the quarter. The company delivered more than 25,000 vehicles, posting a quarterly record, and said that production for the Model 3 is on track. It will be producing about five times more cars in 2018 than it does today, executives added, totaling 500,000 per year.