I'm on my mobile so ill keep this short.
Did you forget to read where I said to price out labor? (Ie, not the part only cost?)
The book rate is 1.2hr vs 3.something.
Oil pan gasket is 6.5 vs 10.something.
An xi is heavier and has more drivetrain loss, why don't you understand that if BOTH cars are driven the same the xi will have higher fuel consumption?