pulp said:
Hard question maybe, but how are you getting on with the M compared to the 3.0? I was considering one before I was set on this.
Well to me the 3.0Si always seemed like 80% of the car for 50% of the money, and now I've had my MC for almost a year I still think that is the case - but that extra 20% you get from an M is just so special! And I was lucky enough to find one in budget last December.
The MC has much higher running costs when you factor in the valve clearance checks at every Inspection service, cost of brakes, etc. but if you can afford to buy one, run one and are a real enthusiast why wouldn't you want the M? The upside is neither model of Coupe seems to be dropping in value lately so it looks like you'd get the extra spend back when selling.
My 3.0Sis were both Sport models running on Bridgestone run-flats and (probably tired) OE suspension and the ride in the two Ms I drove before I bought mine actually rode better! Mine isn't so good, but it's on H & R coil-overs which feel too stiff for road use for my liking. But they will be coming off!
Both models obviously feel the same when you sit in them, but as soon as you fire up the engine you know you are in a different car! My M has Powerflow back-boxes and sounds fantastic, without being excessive. The hydraulic PAS in the M feels way better than the electric set-up in the Si which could feel a bit notchy, and on run-flats they did tramline a bit which the M doesn't. And the run-flats used to "thump" over minor imperfections, even cats-eyes.
The M has an LSD but in view of our pandemic I've only just got past 2,000 miles with mine, so haven't turned the TC off to find out how much difference the LSD makes!
My Z4s have only ever been used as cars for special occasions - if I was using one as a daily I'm not sure I'd want to subject an M to that, but for what I do with mine I'm just loving it.
I hope that convinces you that you've made the right choice! :lol:
Welcome to the mad house. 
