The Rolls-Royce Cullinan is the first SUV Rolls-Royce has ever produced, named after the world’s largest uncut diamond. It’s an absolutely vast 4×4 and one of the most luxurious cars of any kind. It’s certainly a huge departure for the luxury British carmakemodelr, which has a long history of producing sumptuous saloons. The Cullinan SUV looks a little like a Rolls-Royce Phantom that’s trapped inside a particularly unflattering hall of mirrors. Sure, it’s definitely one of the most imposing objects you’re likely to spot on the road, but its enormous grille, flat sides and boxy roofline won’t appeal to everyone. A few contrasting silver trims on the doors, around the windows and on the wings help to disguise its colossal silhouette, but it doesn’t quite hide its size as elegantly as a Bentley Bentayga. The Mercedes G-Class pulls off the deliberately boxy look much more convincingly, too. Rolls-Royce Cullinan buyers will probably never venture off-road in their new cars, but should they ever get (very) lost on the way to Knightsbridge, there are some contrasting silver protectors that’ll keep the bottom edges of its expensive paintwork mostly scratch-free. You can choose to fit the Cullinan with either what Rolls-Royce calls Lounge or Individual seats. The former is the most practical option and comes with three rear seats that can be folded down should you ever need to carry more than the Cullinan’s 560-litre boot (600 litres with the parcel shelf removed) can manage. The car’s huge size should mean there’ll be ample head, leg and shoulder room for three large adults to sit very comfortably indeed. The Individual rear seat option replaces the central rear seat with a drinks cabinet – complete with Rolls Royce whisky glasses, Champagne flutes and a fridge. The Cullinan is the first Rolls-Royce to come fitted with a touchscreen infotainment system – although you can still control it using the rotary dial on the centre console like BMW’s iDrive. Through this, you can tweak the sat-nav, adjust the set-up of the standard air suspension and access a live feed from the panoramic surround-view camera system. If you’re worried that the Cullinan’s imposing size and huge doors will makemodel it difficult to climb into, there’s no need. It’ll lower its huge body to help you climb in as gracefully as possible – just like a London bus – as soon as you touch one of the door handles.