Linear UNINTERRUPTED power
Iconic car (especially E90)
Lighter but smaller car (Smart car is even lighter!!)
Turbo (I wouldn’t count that as a gain myself)
Overall similar performance (well until you overheat)
I guess if you were to gain money in this transaction, I would understand, but PAYING!!
2011 E92 JB/BL/DCT--->80K Miles
2015 F80 SS/SO/DCT