Order books in the firm's home market have opened immediately for the four-wheel-drive SUV, with prices starting at the equivalent of £41,075.
The five-seat ES6 uses the same platform as the larger, seven-seat ES8, which went on sale in July 2018. That means it has an electric motor on each axle powered by a liquid-cooled lithium ion battery pack.
There are two versions of the ES6: Performance and Standard. Both are available with Nio's existing 70kWh battery pack or a new 84kWh pack.
The Performance model features a 322bhp motor at the front and 215bhp motor at the rear, giving it a total of 544bhp, plus 535lb ft of torque. Resultant performance is a 0-62mph time of 4.7sec and a top speed of 125mph.
Range is 319 miles on the old NEDC cycle with the 84kWh pack.