1) Side grill Lexus is more distinct (Lexus 1, BMW 0)
2) Side vents (indicator area) BMW is more distinct (Lexus 1, BMW 1)
3) From mirror forward Lexus is more distinct (Lexus 2, BMW 1)
Everything else is pretty much the same everywhere on both types, excluding wheels and suspension.
Not a bad level of change (side view) from Lexus for such a short time frame to make the Is-F, more than what i thought before doing this comparo.