2015 BMW 7 Series 730Ld review

It's BMW's new flagship model, and one that is looking to derail the sizeable market share that Mercedes has accumulated with its undeniably impressive S-Class. More than that, the 7 Series seems to be out to steal some of the limelight the S-Class enjoys as a known benchmark for cutting-edge technology and safety.

BMW has really gone to town. Not only has it used carbonfibre in the 7 Series’ construction but it has also included a wirelessly chargeable key with a 2.2in screen that acts as a remote for various functions as standard - including, eventually, remotely driving the car from the outside. Its exterior cameras will also recognise traffic jams and roadworks, then beam them back to a central hub before warning other BMW drivers. For relatively little extra, you can have a tablet included in the back, too.

Maybe the biggest hint that it's out to ruffle the S-Class's feathers is the Executive Drive Pro option, which acts like Mercedes' Magic Ride by studying the road ahead and slackening the suspension to glide over large bumps. BMW is keen to point out, though, that unlike with the Mercedes, it can be fitted to both diesel and petrol models and works in the dark and rain.

Oh, and while the Mercedes provides four perfume choices to be pumped one at a time into its S-Class's interior, BMW has developed eight, two of which you can flick between at your leisure. Now that's progress. 

Here we drive what's likely to be the best seller, the 30d diesel, in what should be the similarly popular long-wheelbase form. It's a compelling package, being closely priced to the equivalent S-Class, but quicker, and officially cleaner and more frugal. 

A noticeably better prospect than that which went before in terms of interior quality, ride comfort and technology. Its engine, though, remains as good as it ever was. Although revised from the old 30d unit, there's the similarly smooth punch of torque just a flex of the foot away. Speed builds extremely quickly and linearly, with the eight-speed automatic gearbox exploiting the engine’s torque band superbly well. 

The previous 7 was always as concerned with agility as it was with ride comfort, hence a greater front-end urgency than its biggest rivals possess and also a firmer ride. However, BMW has fitted adjustable air suspension as standard to both of the new car’s axles, to ensure a better blend of work and play.

The result is certainly a more comfortable prospect than before; the way the 7 Series sponges away sleeping policemen and cushions undulating roads in its most compliant Comfort mode is an improvement. Unfortunately, though, as the roads on our route back to the UK changed from French to English, there was still a fidget to the secondary ride at low speeds from which an S-Class just doesn't seem to suffer.

Dial it to Sport, and while the 7 Series is far from a properly engaging driver's car, there's certainly some fun to be had. Its steering is a little artificially weighted and just a touch vague off centre, but there's enough precision, grip and willingness from the chassis for it to feel light on its feet.