Launch Control X6M

[FrstBmr]

At 60 it reads 2 mph higher than real speed as confirmed by both radar and gps.

[ddk632]

Interesting. At 60 I'm about 4-5 mph higher. Have you topped yours out? What does speedo say then (you know it's 155mph regardless of what speedo says)

[utahm5]

Originally Posted by ddk632

I didn't watch the video at first when I posted last time. Now I realize it's an M5 video. Yeah, it's common knowledge M5 and M6 got Competition Package for 2014. Glad to know it removes the top speed governor.

X6M (this being the X6/X6M forum) doesn't have this in the US, and never has. It is also governed at 155mph (167mph indicated on speedometer, roughly 8% optimistic). There are various tunes which remove (or loosen a bit) the top speed limiter for our X ///M series cars.

There is/was apparently an "M Driver's Package" that increased X6M limited top speed to 171mph (275km/h) but I don't believe this was ever available in the US. Again, if it was, my car would have it.

The Dinan tune moves the top speed limiter for X6M from 155mph to 167.7mph. Based on the roughly 7.8% optimism, the speedo would show roughly 180.68mph to the driver. Dinan states on their website as follows: this description of their tune that


Therefore it seems that if someone was driving an X6M and it shows 190mph on the speedo, the car is actually doing about 175mph in real speed. That would not be unreasonable for this car, but probably the fastest that you'd want to be going.

To do REAL 190mph, the speedo would need to show 204.70 mph, which is a stretch for this car (read - not going to happen, at least not for long before something bad happens)! This assumes stock speedo, stock tire sizes, etc.

I completely agree with you. Sorry I posted that on the X6 forum.

FWIW the order sheet on my Wife's '14 X5 50i shows (under the M Sport Package) and item numbered 840 "Increased top speed limiter" what ever that means.

You are very correct about the speedo's in these cars they are very optimistic! That said there is no way in He11 I'd want to go even 150 in and X5 even though I'm sure it would do it.

At the end of the day there a stop light racer at best. I don't even know if they come with Launch Control; however I'd doubt it. They were not designed to be an M5.

Great car for the Wife. Safe, room for the Grandchildren, well some of them, we have 21!

Also great care for a guy with a Family who wants very more than reasonable performance and handling. I spent many years in suburban's

[ddk632]

The X5M and X6M have Launch Control (the subject of this thread). The non M versions do not.

If you're ever in Florida, I can prove you wrong about our X ///M's at top speed.
They are very stable, very planted, and very solid. Not a stop light racer at all.

I took my X6M through Tail of the Dragon after PCD delivery in South Carolina and did my 1200 miles break in the way the car was meant to be driven!

The M5 is a beast of course and I had the pleasure of being a passenger in one while the BMW Performance Center instructor, a current race car driver, was driving on the hot lap, most of which we were drifting sideways.

Believe it or not, even with xDrive, the X6M is capable of doing a controlled 4 wheel drift when driven correctly. This car is tons of fun.

If I had to guess, the increased top speed limiter option with M Sport for an X5 50i would take the limiter from 130mph to 155mph.

[AndreyATC]

New X5 with M sport will have a launch control
It's a new feature of 8-speed ZF tranny for MY2014 on many BMWs

[petfred]

can't wait to try this out..thank you!