Mazda which is partially owned by Toyota is getting inline 6’s for longitudinal applications. They will come in diesel too.
That would be great for the 4R imho. Smooth, more power, lots of room for wheel travel.
They say 2026 for these engines. Maybe that’s why Toyota is taking so long to show the 6th Gen.
Mazda Shows Inline-Six Engines, Confirms U.S.-Built Hybrid SUV