With the latest update to the Environmental Protection Agency's internal database, we now find detailed range ratings for all versions (excluding P100DL) of the Tesla Model X. We're not sure why the top-level X is excluded from the list, but at least we get our first look at the lowest-level model in regards to its range breakdown.
From left to right in the chart below is the city / highway / combined EPA range rating for the Model X is 60D, 75D, 90D and P90D variations.
Of note is that the 60D Model X is the only variation with less than 200 miles (196.5) of city range. All of the only variants have substantially more city range. So, if you're a city driver, perhaps the 60D isn't the right choice for you.
Just for comparative purposes, here's the detailed range rating for the Chevrolet Bolt (note: the Bolt beat all 4 of the listed versions of the Model X in city range, thought it's outdone by all but the 60D on the highway):
Chevrolet Bolt EPA Range Ratings - From Left To Right: City/Highway/Combined