the alarm isn't worth it according to most folks. Their advice is to get the clow-nose activated instead as a decoy. Not sure if 325 comes with it though.
A CD changer is a great option. It's up to you. Avoid the glovebox mount according to some folks who've had problems.
I'm pretty sure you can extend the warranty down the road. Why not wait and see how the car holds up first. I think you can add it on several months after purchase. Ask your dealer.
Save the alarm money for other things like an M3 wheel, etc...
A CD changer is a great option. It's up to you. Avoid the glovebox mount according to some folks who've had problems.
I'm pretty sure you can extend the warranty down the road. Why not wait and see how the car holds up first. I think you can add it on several months after purchase. Ask your dealer.
Save the alarm money for other things like an M3 wheel, etc...