Step down into the No4 and you’re greeted by plush, soft-touch leathers, tactile wooden trim and solid build quality.
Our Nappa Leather plug-in test car felt particularly well-screwed together, with the nappa leather upholstered seats, centre console and doors evoking a premium feel to put it well up there with BMW and Audi in terms of perceived quality.
Sure, there are some cheaper materials lower down, and the plastic glove compartment does look a bit cheap, but overall it’s a pleasant environment.
DS has increased the size of the digital instrument cluster from 7in to 10.25in, while the infotainment screen remains the same as the outgoing car at 10in. The central touchscreen is clear and crisp, and generally easy to navigate.
You get a row of physical buttons underneath the screen, but while most toggles and switches improve user-friendliness, their application in the DS No4 is poor. Even with a few buttons for the climate controls, you’re still forced to use the touchscreen to adjust the fan speed and temperature. In fact, most functions are operated via the screen and it’s not the slickest infotainment unit we’ve used.
Space up front is ample, but the No4’s rakish roofline dents its people-carrying credentials when it comes to rear space. Taller adults will find it difficult to get comfy in the back due to the DS’s distinct lack of both head and legroom – even with your legs splayed it’s uncomfortable.
That said, you do get a 390 litre boot, which is more than you get in the plug-in versions of the Mercedes A-Class and Audi A3.