Lexus is radically reimagining one of its oldest models.

The Japanese luxury marque unveiled a bold concept based on the LS at the Japan Mobility Show on Wednesday. But rather than being a sedan, like every other iteration of the company’s long-running flagship, this prototype has taken on the form of an ultra-luxurious, six-wheeled van.

During a presentation at the biennial convention, Lexus’s chief branding officer, Simon Humphries, admitted that sedans are “fighting a losing battle with SUVs.” Which is why the latest LS is a stretched-out van, rather than just another four-door saloon. That change alone would have been enough for most companies, but not Lexus. Its designers also added an extra set of wheels. The future prototype has a large set of wheels up front and two smaller pairs in the back.

The third axle is about more than just looks, though. Previously, the LS stood for “Luxury Sedan” but now, Humphries said, it stands for “Luxury Space.” The extra-long wheelbase means the concept’s sliding doors open to reveal an interior that’s as spacious and airy as that of any Lexus before it. The cabin is outfitted with large windows and two skylights that run parallel to one another, allowing passengers to fully take in the surroundings on the way to their destination. There are also hand-made blinds and window shades for those times when privacy is desired.

The cabin also has its fair share of luxe amenities meant to help facilitate calm and relaxation. Chief among these is the seating configuration. Images of the concept show multiple layouts, including one that features a pair of large captain-style seats and another with a reclining bench that looks like it can be used as a bed (a third row of seats also looks to be an option, but that’s no fun). The rear of the vehicle is also equipped with a pull-down 48-inch screen so that those riding in the back can watch a movie, catch up on their favorite show, or check in on the big game.

Technical details are scarce, as tends to be the case with the more imaginative concepts. We do know that the vehicle is electric, though. It was also clearly designed to be driven by a chauffeur. Up front, there is a driver’s cockpit that features a yoke-style steering wheel and a streamlined screen setup. The front seats can also be turned to face the back of the vehicle.

So, will this concept go into production? Lexus currently has no vehicle platform that could provide the skeleton for a six-wheeled van, so chances seem unlikely at this point. That said, the current LS sedan is set to be discontinued after the 2026 model year, so maybe there’s hope for this prototype yet.