Tesla Model X receives slight range increase
Delivery of the first Model X vehicles to &nbsp;their buyers is approaching, and now it looks like the range for the P90D Signature Series model has been increased slightly. When the option was first added to Tesla's website, the range was listed as 240 miles on a charge, but now Green Car Reports (GCR) states that it has been increased to 250 miles.&nbsp;It should be noted that the P90D Signature Series will probably have the longest range of the entire Model X line because it has the biggest 90 kilowatt-hour battery pack. However, it's possible that Tesla will offer a 90D model without the high-end Performance package, and GCR speculates that it could have a higher range than the P90D model. Furthermore, GCR suggests that the range could be one of the key reasons Tesla has delayed the release of the Model X more than once.
Tesla appears to have increased its range estimation for the Model X electric crossover.

It is now giving an estimate of 250 miles to customers invited to order the P90D Signature Series model.

The company is allowing customers who made early reservations to begin configuring cars, but this top-spec model is the only choice available, for now.

DON'T MISS: Tesla Model X Configurator Now Live; Signature Series Starts At $132,000 (UPDATED)

When the configurator first launched, it showed a range estimate of 240 miles for the P90D Signature Series.

But recently a customer posted a screenshot from the Model X configurator page showing a 250-mile range claim on the Tesla Motors Club forum.

The Signature Series model is only available with the largest, 90-kilowatt-hour battery pack. Models equipped with smaller packs will have shorter ranges.

Tesla Model X at 2013 Detroit Auto Show

Range may have been one of the reasons for the multiple delays to the start of Model X production.

ALSO SEE: Why Tesla Model X Electric SUV Is Late: Range, Towing, 'Falcon Doors'

The crossover is heavier than the Model S, and has a greater cross-sectional area than the sedan.

We understand that Tesla had originally counted on replacing the Model X's door mirrors with video cameras to help smooth its shape, and increase range.

But given that the National Highway Traffic Safety Administrations (NHTSA) hasn't ruled on the legality of video mirrors, that isn't really an option for the Model X at the moment.

Tesla Model X prototype [by Silicon Valley Teslas]

The Model X Signature Series will start at $132,000--before any Federal, state, or local incentives--but other models will be less expensive.

MORE: Tesla Delivery Goal Fell Due To Slower Model X Production Ramp: Sources

Tesla CEO Elon Musk has said that a Model X will generally cost $5,000 more than a comparably-equipped Model S.

Musk claims the first production Model X crossovers will be handed over to their owners September 29, at Tesla's factory in Fremont, California.

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