Skip the n63 tu tu2.
They're all crap.
Gave it some stick and ended up needing two fuel pumps and 8 injectors at 5000£, which I managed to make BMW pay for.
Headlight gaskets went headlights started filling with water.
Lhd steering column gasket went floor of car filled up with water, had to have the interior out.
Brakes warped
Constant battery drain issues
While I loved the car the constant problems made it a nightmare to live with.