Every electric No7 can charge at up to 160kW – a speed that it will maintain between 20% and 55% capacity to give up to 118 miles in as little as 10 minutes, promised DS.
Unlike the No8, the No7 will also be offered from launch with a hybrid powertrain, combining a 1.2-litre three-cylinder turbo petrol engine with a small electric motor in the gearbox for 143bhp and 53mpg.
Around town, this powertrain can run with the engine off up to 50% of the time, using energy generated under deceleration, said DS.
The striking interior is modelled on that of the No8, with a wide, 16in touchscreen in the centre of the dashboard (so shaped for easy access by both driver and passenger) supported by a 10in driver's display and a smattering of physical controls arranged around the centre console.
It also has the same unusual X-spoke steering wheel and an intricately detailed dash panel that extends into the doors to create a cocooning effect.
DS highlighted the upmarket materials and finishes used for all key touchpoints as a primary differentiator in this segment.
Deliveries of the No7 – which is expected to be DS's best-seller – will get under way later this year, with prices expected to start at around £40,000 for the hybrid and £45,000 for the EV.