You don't have a clue., Thats one statement that makes absolutely no sense to me, maybe you want to explain, maybe the way you said it isn't right? If that is what you meant.
What 09 components are worse than 08. I have abused my sled harder than anyone else I know and it has help up great. If something fails from hitting something thats not AC fault, its called a wreck.
07 is 31lbs heavier and the 08 is 22lbs heavier than the 09, The newer track and tunnel design is way better, (my piped 07 that flat ripped couldn't pull like my 09 stock, thats 195hp vs 162hp) There is far less rotating mass also, I would rather have a DD with a bearing you can be replace for $15 bucks than a DD that will eventually explode and cost hundreds to fix. The 09 has a better fuel map, etc... I can go on. Pretty much I could beat a stock 08 m1000 with a stock 09 m8, and obliterate it with a 2010-11 m8. I also never saw a 08 that ran like I thought it should, would rather have my old 07 over the 08, but it just doesn't stack up like the 09, but thats just my experience. A really well setup & piped 09 will nearly run with low boost m8's (wont beat it) and if a TM8 isn't setup right the well tuned m1000 will beat it. The 08 wouldn't stand a chance. I'll put money where my mouth is.