AMGC60-3

Yes your correct and I agree. The M156 was changed so much for the SLS that AMG dubbed it as the M159, but with the PPplus and some internals being changed then its not really the M156 either. I am sure that later down the road we will see the new M159 more in the future AMG lineup and the M156 is on its way out.

Z99

I had PP suspension installed and I was over 2 seconds slower on my lap times. The dealer talked to AMG rep and I tried to work with MB USA. It was a very expensive upgrade. They did not sound suprised. They were not suprised by the front PP rotors disintegrating after one track session either. It makes total sense to me that they have eliminated suspension and replaced rotors and pads. MB would not refund me, but dealer worked with me to install coilovers and brakes for free. PP suspension feels stiff and most people assume it is faster on the track. Actually, it is too stiff and the car tends to skip on high speed corners. Rather scary at 120 mph.
Reached out to Renntech for help during this process. Hartmut, the owner, uses softer set up for the track and takes the two piece PP rotors off and replaces them with the solid steel non pp rotors for the track. I think his feedback is probably valued at AMG. I still have the struts for sale.

Jim Brady

Sounds like the factory missed the mark as stiffer isn't always faster. Does any one know if the spring rates on the PP vs. non PP? My guess is the springs are not the problem it's the shock valving is too harsh and non complient. Solution is KW varient 3 coil overs.

GBlansten

Not surprised either. The M3 has an electronically adjustable suspension and I've read that track times are not helped by going to the "track" settings.

rage2

Totally depends on the track and the driver. Stiffer suspension generally helps with tracks where there's a lot of transitions, and hurts when its bumpy. Some drivers are more comfortable handling high speed bumps than others and can manage the compromise.

You're gonna find tracks that are faster for PP, and tracks that are faster for non PP.

iatacs19

Very interesting.

KEMA

I had more or less the same feedback from another PP owner which is why I spec'd the LSD without the PP (EU 2010 model).

Ken

Z99

Agreed, KW probably best choice if you get setting right. But, after my expensive mistakes, I decided to go cheaper route and got H&Rs. Worked out well. Along with Rennteh pads, and solid steel non PP rotors, I beat my PP set up by over 4 seconds and by over 2 seconds my original non PP suspension set up. Plus rotors survived. Expensve sport, but only one way to find out what works. Currently having my John Works mini set up for the track as well. Working with Mini tuner, he also told me to stay away from stiff set ups. I was asking for H&R track coilovers. He told me to keep stock struts and just change springs along with a rear sway bar. Another experienced tuner telling me to stay away from a very stiff setup. Reminds me, if anyone wants to see a fast lap, google RMW Mini Road Atlanta. Impressive.

Tyler1012

I recently bought a 2010 c63 and was wondering if you guys think there might be a retrofit kit for the pp plus

Merc63

Not a chance.

Newzchspy

+63, not a chance !! Have you seen the changes to the engine alone??? Time to trade er in and get the December 2009 P31 production.

Look on the bright side, if you have the 2010 P30 Package, you got a great deal on the LSD!!

transferred

Interesting post. Audi had the "stiffer is faster" misconception with all there warm cars like the S4. Finally got it right with dialed in suspension with the B7 RS4...sounds like AMG need to speak to them, or dare I say it, "M"

I''ll ref you next time someone says the M3 brakes are poor on the track vs c63...

-Rob

Z99

As one tuner said, so much of it is marketing. That said, the solid steel non PP rotors are just fine. Originaly I had problems with the pads. They disintegrated. Thought going to PP rotors would help. But, problem was pads not rotors. I have Renntech pads now and they set up works very well with solid rotors. No fade and the rotors are fine after some long track events. They are a little noisy, but I am happy with set up. My friend tracks a 2008 M5 with me. He suffered from significant fade and pads would not hold up. Switched to yellow Pagids and everything is fine. The desire to eliminate noise and dust has a downside. Pads seem to be the weak link in the M5 and the C63. I do not have much color on the M3 brakes.

transferred

RS14s transform any M or AMG, no doubt

chief63

In the P31, how much are really parts and how much are really engine management.

When installing a K1 ecu for example, what would be the real difference, 30HP or much less? If you think the upgrade is 20% parts and 80% ecu, then installing a K1 will show gains of only 6HP compared to a NON P31 car. Onthe other side if the parts are making the big difference, the package is somewhat worth it cause getting that extra 30hp later on will be tough if you do a lot of modifications on the car.

How would I know? Need to finalize my order before christmas and this sudden change is driving me mad!

I'm not a huge fan of the suede/carbon steering wheel, or slotted/drilled discs (bad experiences on the track), or red calipers. That's pretty much what's left, lighter internals.

For 6000$ they are a lot of things you can do that will make a lot more than 30HP. Get a chip, OS Giklen LSd, filters and strut bar and you'd be in a much better track setup and street setup.

What do you think? I guess I'll wait on the final info from the dealer.

thanks!

avengerboater

I'd just go with the LSD option and save the $6k for K1 tune, suspension + other goodies...or a K2 tune.

chief63

Thanks for your advice avengerboater. So you would go with the stock LSD or high end aftermarket one? I guess if you can't afford the best right away its better to wait than get the cheap option.

take care.

gravedgr

What are you, 12?

hcetzneb

How is this being 12 ??? everyone eles got over this weeks ago. I was offering info to people whom own or were concidering to buy a c63 and some member was confused on were i got the info from ... He said this was just rumor but it cant be a maybe when ordering codes are avaliable... So please go back under the rock you crawled out of

Rennteam

Wow..."passionate" discussion.

The new C63 Performance Plus Package does not include a new engine, it is the same C63 engine used before but with new conrods, a new crankshaft and SLS pistons.
Some people apparently think this is an ECU upgrade only but it isn't.
AMG of course uses a new engine software too but it is only part of the package.
The limited slip differential is a seperate option, same applies to the optional Vmax increase to 280 kph (175 mph).
I know this has been posted in seperate posts already but since this thread is from November, I just wanted to confirm it.

0-125 mph acceleration time decreases from 15.2 seconds (standard) to 13.9 (Performance Package Plus).

More information: apparently the C63 doesn't get the LED daylight running lights of the C-class but in conjunction with the "advanced light package" (I hope this is the right name for it in English), you get LED taillights and LED blinkers.

I was last week at my local german Mercedes dealer to get more information about the C63 and he showed me all the brochures and price lists. First cars with PPP should hit the streets soon, he offered me a brandnew C63 with PPP for early March 2010 delivery.

AMGC60-3

I was at the US military sales for MB on Saturday here in Germany and asked about the ppplus and was told that American spec C63,s wont see this package until the MY2011....

ATL_MB

Not true - I just picked up a C63 off the lot. I was considering ordering a car, and my dealer was offering me a C63 with the new performance package for early December build, 2nd week of January delivery.

Mrbig

That PKG is just insane add some mods might break into the high 10's !!!