After reading the recent Motor Trend X75D Review (link below), the listed 0-60 time caught my eye: 5.5s. It's listed this way inside the review itself and on the specifications below the core text. On the Model X order page it's listed at 6s. Has this been tested independently elsewhere? Have any 75D owners noticed this? Perhaps it's just an error in the review, but it'd be nice to know for sure.
2016 Tesla Model X 75D First Test Review - Motor Trend
2016 Tesla Model X 75D First Test Review - Motor Trend