It sounds as if Infiniti is planning to go after the BMW M5 with a new IPL model.

Infiniti's announcement that it will be renaming its entire model line for the 2014 model year stirred up plenty of complaints from the brand's current customer base, prompting Infiniti president Johan de Nysschen to take to Facebook to explain the reasons behind the decision. De Nysschen broke down the move using four bullet points, with one in particular catching our eye.

When explaining that Infiniti's current naming structure doesn't support high-end models with smaller displacement model, de Nysschen used a rather interesting example, indicating Nissan's luxury brand could be developing a BMW M5 rival.

"I'm sure you will agree, it would be a bit odd to have a powerful, luxurious and refined V8 powered Infiniti M56, then position a new high-tech 550+ horsepower performance flagship for the Infiniti M range above it, using a potent charged induction V6, but then call it Infiniti M30, which we would be obliged to do, following our current naming logic," de Nysschen wrote.

Although this is the first time we've heard Infiniti talk about a forced-induction V6 developing more than 550 horsepower, we have heard rumors that Infiniti is planning to use a Mercedes-sourced twin-turbocharged V6 for the next-generation of its G (or soon to be Q50/60) IPL model. The M would be the next logical landing spot for that engine, and this could be the first confirmation that such a project is under way.

Interestingly, de Nysschen also wrote that Infiniti "will introduce some exhilarating performance machines in the future," indicating that several Infiniti models could be in line for the IPL treatment.

Although Infiniti's new naming structure will take some time to get used to, we have a feeling it won't take long to warm up to a 550+ horsepower engine, no matter the name of the car it's in.