kulang,
The E60 M has been my dream car since it was released. Notice its been my avatar with quite some while. Too bad this one isn't mine...at least I get to drive it though.
Brian,
As I directed to kulang, the M5 has been my dream car for quite a while. I will admit after driving it around a bit I did, at first, feel it is a little large for my liking (being used to my G35 and all).
For a second I was thinking an M3 would be better suited as a dream car for me but after I started to give it a little pushing in M mode you really do not feel the size. You feel it is a heavy car, but it isn't at all held back by the weight.
And it's great because the other day I had to cart around the few of my friends and I asked my dad to drive the M (and he agreed - coolest dad ever) and the usable back seats were exceptionally convenient.
ClodMaxx,
Mods to the G include a modified Injen Cool Air Intake, lightweight pulleys, a Stillen Engine Damper Mount, Stillen Sway Bars, and Mintex pads with AP Racing Pillar Vane Slotted Rotors in front (will go with these in the rear when they eventually wear out). I also have a Stillen Rear Strut Bar in the trunk - that one kind of sucks though cause it really eats the already miniscule trunk. But it does make a world of difference for making rear-end stability consistent. There's also the obvious tint but that's not performance related at all.
I replaced the Injen Filter included with the intake with a K&N filter. The Injen filter requires you to remove the bumper to properly access the filter element. I replaced it with the K&N which is thinner (but longer, to compensate), and it allows me to remove it without taking the bumper off. I had to cut a bit of the intake tube to compensate.
The Gold Brembo Calipers you can see beneath the rim are actually OEM equipment. They came standard on all Manual 04 G Coupes (yes, mine is a 6MT).
What about your Z, any mods?
My dad said that we could take it to a track day (I'll go with the G, and he with the M) pretty soon. The clutch on the G is getting pretty weak, however, and I figure it will be absolutely toast after that, and he agrees. I'll likely go with a lightened flywheel and more robust clutch. Stillen has a nice set where the flywheel is about half that of stock and the clutch holds about 40% more power. It costs half as much as getting an OEM replacement from the dealer as well.