iPhone 14 Pro vs. Galaxy S22 Ultra HP Pavilion Plus Planet Crossword Pixel Watch Apple Watch Ultra AirPods Pro 2 iPhone 14 Pro Camera Best Android Phones

The BMW super-coupe rumor mill says to keep your eyes peeled in 2019

Faced with sales well below the competition, BMW's reportedly reinvigorating its large-luxury lineup with a "sporty two door."

2016 BMW 7-series
Now playing: Watch this: AutoComplete: Mercedes and Infiniti are most likely to...

The 7 Series is quite the opposite of a bad car, but it's having trouble matching the success of its biggest competitor, the Mercedes-Benz S-Class.

Tim Stevens/Roadshow

Do you remember the BMW 8 Series? It was the largest coupe the automaker offered, existing as a sort of sporty analog to the 7 Series sedan. It died before the turn of the century, but now, there's a good chance it might come back, as BMW figures out how to better bring the battle back to Benz.

BMW is readying a spiritual successor to the 8 Series, likely positioned as a 7 Series coupe, which will reportedly debut as early as 2019, according to Bloomberg sources familiar with BMW's short-term roadmap. The source also told Bloomberg that the coupe is the "first of several new versions" as BMW builds up a luxury-leviathan portfolio to boost its lagging sales.

Currently, BMW's 7 Series sales are some 40 percent below the Mercedes-Benz S-Class, despite the former car being two years newer than the latter. In fact, sales are only barely ahead of Tesla's Model S electric sedan. Audi's due for a new A8 in 2017, which will make its current efforts even more difficult.

I think a 7 Series coupe could help BMW in one big way: variety. Mercedes-Benz makes a wealth of different S-Class configurations. You can have total luxury (Maybach) or crazy performance (Mercedes-AMG S63, S65), and the S-Class is also offered in both coupe and convertible variants, each with their own performance model. BMW's current 7 Series stable is limited to the standard V-8 sedan, with V-12 and plug-in hybrid models coming soon.

That's a big gap to cross, but the luxury market isn't shrinking, so adding a number of body styles to its flagship product could greatly expand its reach. At the least, BMW needs to jump on it before Audi beats it to the punch.

Now playing: Watch this: Shootout: 7 Series vs. S-Class for luxury motoring