West o the Mississippi and east of West Coast.

MANY open barren highways to roll 3 digits, +.

It is quite smooth and quiet at 130.

Geez, what a bunch of weenies! :confused:

Don't drive your X at 130?!?

The X5 is rock solid at 130, and my 4.4 is stable at 140.
And it gets right up to 140, doesn't take 10 minutes.

The 4.4s do not have speed limiters, they are drag limited at around 142-144. The 4.6 and 4.8s are also drag limited, they do not have internal limiters.

The 3.0s have the 130 mph speed limiter due to the crappy 17" tires they came with.

Not true. They are electronically limited.

My 4.6is is electronically limited to about 155mph. Remove that limit and it would run out of gear at about 20-30 mph higher.

There was an option for the 4.4i X5s to have speed de-limit, however the 4.8 and 4.6 have always been limited to 153

I have never heard of that as a BMW factory option. Can you post a link or any credible proof of this?

Everything I have read shows pretty much every single modern BMW being electronically limited as far as top speed is concerned.

Page 7 of the press release on the home page for the '06 models says that with the 4.4i sport package there is a speed de-limit for a 149 mph top speed

Yup, you are right. It is right there on pg 7. The 06 4.4i sport package doesn't have a limiter. Thanks for the info. :thumbup:

That is pretty atypical. Are there any other strange years and models that had the limiter removed? I bet that situation is pretty unique with BMW's.

I think the only reason they did it was the sport package comes with tires that can do 160+ and the 4.4 can barely do 149 so there was no real risk in doing so

I am definitely no stranger to triple digit speeds (I ride a Kawasaki ZX14 and see 140-150 mph many times during a normal day of riding), but I would definitely not trust the X5 at those speeds. Things start getting a bit too 'floaty' at about 130 mph. Mine is a 3.0, so as a post indicated above, it may have to do with its 17" wheels.