I found it interesting the entry GLE350 now has a turbocharged 4 cylinder (the old model had an aging naturally aspirated V6). It has 255hp which is similar to BMW's B48. Audi similarly offers the Q7 with their turbocharged 4 cylinder making about the same amount of power.
These large SUVs aren't ideally suited for small displacement gasoline engines, but there seems to be some market for them nevertheless. It will be interesting to see if BMW finds it necessary to add a four cylinder X5 to compete. They previously had the 40e PHEV model which made over 300hp and was quite adequate by most accounts. However, its replacement will be the 45e which uses a B58 for the combustion engine part of the drivetrain instead of a B48.
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