The big SUV is a step in fulfilling Cadillac's vision for an all-electric lineup of "tier one" luxury vehicles.

Newsflash: the new electric Cadillac Escalade IQ weighs over 9,000 lbs, or a fair amount more than 4,000 kilograms. For context, that figure works out to almost exactly half again as much as the 682 hp (509 kW) Escalade V that comes equipped with a barking-mad 6.

The Escalade IQ is smarter, it turns out; A big battery delivers 460 miles of range; Cadillac delivers a big price,