Your ignorance is striking.

1-If you have studs and one breaks, you're really screwed.
2-Studs can be damaged by putting the wheel on. Obviously you haven't tried
changing a wheel on your new car. If you did you would see that the wheel
snugs up on the rotor very nicely and you can insert the bolts with only two
hands. "Hanging" the tire on the studs is far more imprecise and you can
damage the stud if you put it on carelessly.
3-Bolts are stronger. They generally have more thread contact than a bolt
does.
4-There is no #4 at this time.

Cheers.


"GRL" > wrote in message
...
> Recently bought a 330i and learned, much to my surprise and disgust, that
> BMW used bolts instead of lug nuts to attach wheels to the car.
>
> This makes mounting wheels much more difficult than with lug nuts (and
> wheel studs). You need three hands instead of two. (Most folks only have
> two.
>
> What is the reason that BMW did this? It seems to be incredibly illogical.
>
> - GRL