my 07 M8 was modded, was running about 165 -170 hp and about 460 dry weight. had the tunnel update with the powerclaw so was actually really close to what the new M is running. there is just no comparision, the way i look at it is its about the same as when i upgraded from my 02 mountain cat to my 07 M8. the M was a generation ahead of the mountain cat, made it seem like it was from the caveman days. feel the same about the pro, its a generation or 2 ahead of the M, its just that much better. if you get a chance to ride one for a day i'm sure you'll understand. the responsiveness of this sled is just unreal, can cut so fast and tight. you can head straight for a tree and just a little body lean and boom your doing a 90 degree cut with no problem and your ready to do the same back the other way. carves downhill the same way, can't wait to do some 180 turns back up the hill this weekend! takes soooo much less effort to ride this all day, did my first 2 day weekend and thought since it was early in the year it would be a strain, rode the second day harder than the first and was still pulling 90 degree cuts all the way back to the truck
rode with quite a few cats this weekend and they were all amazed at how this thing even in 2-3 feet of pow would take right off and jump right on top of the snow. the M's were trenching when taking off to the point of getting stuck. the suspension on this sled is another great point, worlds ahead of the M, especially the rear skid, man it flat out works. got a chance this weekend to run back on a trail that was whooped out for 3-4 miles. lots of 2-3 foot whoops, i could run it about twice as fast as my M and did not once bottom the rear skid. my M would've been bottoming out every 2nd or 3rd hard hit. don't mean to sound like a salesman but this sled just gets me so pumped up to ride it, hands down stock out of the box is better than any sled i've ever owned...
heres the old M... was a great sled for its day!!!