Own both - tough call. Love both rather equally, despite how very different they are (yet also obviously remarkably similar, starting with size/dimensions). For a DD - tough to argue that the F87 is the much better bet - far more real world power that can be tapped into on the street (torque), and the minor creature comforts over the E46 are better, like wireless Carplay for example. That being said, I’ll never get rid of either car, and the E46M still holds a very special place in my garage.