The Sierra should be able to add 100 miles of range for every ten minutes of station time on a DC fast charge, provided you invest in the 800W electrical design, which is expected to be an optional feature with four-wheel steering and crab walking capabilities. The Sierra, like other Ultium cars, will feature bidirectional charging, allowing it to power domestic appliances for up to 21 days, according to GM’s product site. A three-year subscription to GM’s SuperCruise hands-free ADAS technology will also be offered.
