It's not THAT farfetched... the most powerful production Porsche is: a Cayenne

Nice to hear.

And about that power, i'm with my friend Andreas - i'll believe it when i see it! Almost 150hp more over the brand new and just presented engine seems a little too optimistic, imo.

BMW should put this drive line if it really exist in an M3 and voila, a GTR!

haha, those power figures are too good to be true.

- ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER

- ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER's high-performance X5 prototype hit the test track again, this time showing some interesting changes compared to earlier test vehicles. While prior prototypes had some styling changes, the headlight design remained pure X5. On this newest prototype, the headlights appear to have been switched out with X6 headlights.

This latest prototype also features a new rear treatment. Earlier prototypes used the standard X5 rear valance, mocked-up to accommodate its new M-style quad exhaust set-up. The X5 shot yesterday, however, gets a new, larger rear bumper that wraps around to the middle of the rear wheel well. The rear fascia on the new prototype looks like a more-finished production applicatin compared to the initial test mules.

This hotter X5 prototype still remains something of an enigma. Three scenarios have been suggested: Is it an X5 M, a new X5 5.0is, or is it a mule for a V-10-powered X6. The application of a new production-looking rear bumper lends credence to the argument for a hotter X5–most likely the new 5.0is. The addition of the X6's headlights muddies the waters a bit more. Will this sportier X5 adopt X6 headlights while lesser X5s keep their normal lights, or will all X5s get X6 front lamps as a mid-cycle facelift?

While we can't say with certainty exactly where the X5 lineup will head in the next two years, it's clear that this hotter X5-based prototype is progressing toward a more finished product.

- ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER
- ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER

Source: - ONLY REGISTERED AND ACTIVATED USERS CAN SEE ALL LINKS - CLICK HERE TO REGISTER

I heard that there will be a X5 M. Seems like it was X5 all along and not X5 with X6 engine. The exhauts appear to be in same place, but rear apron/skirt is changed. Right?

Something is definitely happening, 'cause this car looks different from the spy shots we've already seen.

I still think there won't be an M version, iS is more likely...

Btw, why would the cover headlights?

Exactly! Is X5 getting a facelift with the performance version? They did not have diffrent hood and headlights for E53 performance version. Only the bumpers.

It might only be the V8 tt testing... with a new M Package..

If you read the report carefully, it states that those are in fact X6 headlamps. I think BMW is adopting the same principle as the E90/92 M3. They want the 4 door performance version to have the same 'front' (lights) as its coupe sibling (in this case the X6). Just a hunch, I could be wrong.