With the Cadillac CT6 now well out of production, GM's luxury brand is looking to plug the gap it left behind with a new range-topping flagship car, and it only makes sense that it will be electric.

The Cadillac Celestiq was first announced back in March, around the same time that GM laid out some ambitious EV plans that included a couple of new pure-electric crossovers, an electric Hummer, and a groundbreaking new battery architecture. It will be the halo car that the CT6 never was: hand-built, low-volume, and exclusive, with a price tag likely well into six-figure territory.

And it could look a little something like this.

What you are looking at is a concept sketch released this week by GM Design, which depicts an unnamed, low-slung Cadillac with a svelte futuristic look. It's got huge, protruding flared fenders, a long, broad hood, and plenty of touches borrowed straight from the world of high-performance sports cars, like a big front splitter and integrated side skirt spoilers. More importantly, it doesn't appear to have a front grille; rather, the biggest space on the front fascia is dominated by a faux-grille panel with an eye-catching texture somewhat like the one on the new Cadillac Lyriq.

This raises the question: are we looking at a rough approximation of the forthcoming Cadillac Celestiq halo car? Previously, our best guess for how it might look came from the 2016 Cadillac Escala concept car, but we may need to revisit that expectation.

It could be some time before we know the answer; GM hasn't set an official reveal date for the new Celestiq, but the car isn't expected to launch until 2022 for the 2023 model year. It will be hand-built at GM's Detroit-Hamtramck plant - recently renamed "Factory Zero" - at a rate of just 1.2 cars per day, and reportedly, it will feature a sloped-rear hatchback design, with four doors and 2+2 seating.

The car in this sketch looks sort of 2+2 hatchback-esque, don't you think?

A while back, GM Design's Instagram featured a concept sketch of a futuristic Cadillac supercar interior, which we guessed might point toward the company's design direction for the new Celestiq. Just a few more sketches and we may well be able to visualize the entire car.