With Formula One taking to Belgium and the famous Spa-Francorchamps circuit this weekend – boasting a reputation as one of the most beautiful courses on the calendar – all eyes will likely be on the tricky Eau Rouge corner, which challenges drivers' high-speed car control over a rolling, tree-lined hill. Infiniti played on the turn's iconic legacy for its ruby red Q50 Eau Rouge concept, and now the brand hopes to trademark the famous racing name so it can keep using it for a potential production version.

In January, the company filed for a trademark on Eau Rouge for "Automobiles and their structural parts; Fuel cell automobiles and their structural parts; Concept cars" with the US Patent and Trademark Office. According to Bloomberg, the application is still under consideration and not yet a guarantee. It's possible that the track could attempt to block the automaker from earning rights to the name. Alternatively, a trademark lawyer tells Bloomberg that the two of them could also strike a deal where Infiniti would pay a small amount for each car sold bearing the title, which could give Spa a bit of extra money in the bank.

Want to sell your luxury sedan in China? You're going to need a long-wheelbase model. Not because the still-dominant Chinese government mandates it, or because the customers are taller, but because Chinese buyers tend to like being chauffeured around in the back of their luxury sedans instead of driving themselves, so the priority is on rear-seat space over driving dynamics.

We've seen the likes of Audi, BMW, Cadillac, Mercedes-Benz and Volvo all roll out long-wheelbase versions of their compact and midsize sedans specifically to cater to Chinese tastes. Even Infiniti – which now bases itself in Hong Kong – offers a long-wheelbase Q70 L not only in China but around the world, and has now bolstered its extended offerings with the reveal of the Q50 L, set to debut at the Chengdu Motor Show later this month.

Set to be produced locally for the local market, the Q50 L adds nearly two inches to the wheelbase of the Q50 to the benefit of rear-seat legroom. Power comes from Infiniti's 2.0-liter turbo four offering 208 horsepower and 236 pound-feet of torque, driving to the rear wheels through a seven-speed automatic transmission with drive-by-wire steering.

Nissan is in hot water—specifically, hot red water—over the pretty French name attached to its GT-R–powered concept sedan.

The Spa-Francorchamps circuit in Belgium wants royalties if Nissan decides to sell the Infiniti Q50 Eau Rouge, so named after the track’s famous (and terrifyingly fast) uphill bend. According to Bloomberg, the track owners registered “L’Eau Rouge” with the European patent office in April as a trademark for cars after initially filing last December. In January, Nissan filed a trademark application in the U.S. for “Eau Rouge,” although it hasn’t committed to build this $100,000, 560-hp supersedan, despite our friendly nudges to Nissan and positive inklings from ex–Infiniti president Johan de Nysschen. If the Eau Rouge gets the green—and considering that Nissan approved the Murano CrossCabriolet, why wouldn’t it?—Nissan may find itself in a legal spat. Alternatively, the Japanese company could pay the track for the limited number of copies it might make, as Pontiac did over a 33-year span for the Trans Am (Bloomberg points out that the Sports Car Club of America collected $5 for every Trans Am sold from 1969 to 2002).

Naming cars after corners and circuits is common fare among automakers, and although we’re not aware of any other trademark agreements for cars like the Bentley Mulsanne, we are sure that Nissan doesn’t like the sound of “Q50 Red Water.” So long as they build something else with a GT-R powertrain, we couldn’t care less about what’s stamped on the doorsill. Nissan Rogue Eau Rouge, anyone?