Tesla figures owners of its Model S all-electric sedan will happily trade a little dashboard start-up speed for a few more miles of range. That’s the crux of a software update from the luxury EV maker that will include a so-called “sleep mode.” That mode powers everything off when the car is shut down.



The upshot is that there will be what Tesla says is a “modest increase” in the amount of time the car’s instrument panel “wakes up” from sleep mode (don’t we all have that problem?). The good news is that the car’s range increases because of sleep mode. In fact, folks willing to put their cars into sleep mode will get about eight more miles of range for every day that the car’s not used and not plugged in. In other words, a non-sleeping Model S loses roughly a mile of range every three hours its just sitting there. Tesla says the software update will also improve voice-command and media-browsing features.



Tesla said late last month that it is boosting the price of the Model S by $2,500 for US customers, putting the base price at $59,900 and the top end hit at $94,400. Those prices don’t factor in the federal tax credit worth up to $7,500. Details can be found in Tesla’s announcement for the software update below.

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By Danny King