Apparently, the collaboration between BMW and Toyota doesn’t just end with the G29 Z4 and A90 Supra. According to bestcarweb, the next-generation Lexus IS will be the next model in line to receive the 3.0 litre straight-six engine. In the Supra, the engine makes 340 PS and 500 Nm of torque.

The Japanese publication states that Lexus’ sporty image is not as widely known as rivals BMW and Mercedes-Benz. To tackle this, it seems there are plans to add a mid-range high-performance sports model with an inline-six engine, one which would sit between the regular 2.0 litre four-cylinder models and range-topping IS F.

Platform-wise, the new IS will reportedly sit on the Toyota New Global Architecture (TNGA) FR-based platform, which underpins the new Toyota Crown. Styling-wise, the report said the new IS won’t look too dissimilar to the outgoing model (pictured above), although the contents will be fully renewed.

Although not confirmed, there are brief mentions of possible powertrain options, including the same 2.5 litre four-cylinder hybrid engine shared with the Crown, a newly-developed 2.4 litre four-cylinder turbo, as well as the carryover 2.0 litre turbo four-potter. In other markets, the IS can be had with a 3.5 litre V6 petrol, but that may be replaced with the Z4-Supra’s 3.0 litre straight-six petrol engine.

The website quotes a Toyota official saying: “Through a new line-up of powertrain units that, combined with the luxury and sportiness [that will go] into the next-generation IS, there is an aim to improve the sporty image of Lexus.”

As for the IS F, the report claims the 5.0 litre naturally-aspirated V8 may face the chopping block, citing fuel efficiency as a primary reason for its possible demise. Succeeding the V8 could be a downsized 3.5 litre twin-turbo V6 shared with the Lexus LS500, possibly tuned to make 422 PS, with drive sent to the rear wheels through a 10-speed automatic transmission.