Some automakers already slap a production-ready name on their concepts, but not Lexus. The Japanese automaker typically labels its show cars with the letters LF-XX. So when we heard that Toyota had green-lit the LF-LC concept for production, we naturally started wondering what name the production version would carry. But if the latest intel is any indication, we can stop wondering.

According to Lexus Enthusiast, the automaker has filed to trademark the names LC 500 and LC 500h in a variety of markets – including the United States, Canada and Australia. The application tells us a number of things: first of all, that the LF-LC will retain that second set of letters along the road to production (like the NXbut unlike other recent Lexus concepts). And secondly, it indicates what engines we can expect to find under the hood.

The 500 designation would seem to suggest that the base version of Lexus' upcoming halo sports car will pack the 5.0-liter V8 from the RC F. The bigger question mark is over the hybrid version. Current gasoline-electric models in the company's lineup include the RX 450h (based on a 3.5-liter V6) and the LS 600h (with a 5.0-liter V8). For the LC 500h, Lexus could be planning a more potent electric motor to mate to the 3.5L V6, or planning a new powertrain altogether.