In a recent email blast to certain Model S owners and prospective buyers, Tesla says that the Model S trade-in value “recently increased due to secondary market demand” and that owners looking to upgrade should request new estimates.

Tesla is trying to achieve a record quarter by delivering between 17,000 and 19,000 cars during the last 3 months of the year. In order to reach its goal, in addition to offering trade-ins to current Model S owners, the company is adding a “significant amount” of demo vehicles, marketing cars and service loaners to offer for direct sales. Should I buy a Model S now or wait a few months for new features? This is a question I hear again and again. The doubt is due to Tesla’s policy of implementing features when they are ready instead of on a annual basis like most manufacturers. But the real question is: “Do you want a Tesla now or in a few months?” – because there will always be new features.

Current Model S owners have a similar problem when new features can’t be retrofitted or installed through an over-the-air update. It’s common to see an influx of older used Model S’s available after Tesla releases new important features like the Dual Motor option or the Autopilot.

In the same email, the company writes that it’s the last week to order the Model S in the U.S. to get the delivery before the end of the year in order to receive the $7,500 federal tax credit.

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