olszowa12

The high-end version will ditch the current naturally-aspirated 6.3-liter V8 engine in favor of a twin-turbo V8 5.5-liter.


All info in the article:
http://www.worldcarfans.com/11210164...-photos-emerge

sbce90

Oh boy.. M157 in a C class!!! Do want

AMGangster

Where is the AWD?

Merc63

False.

If they are dropping 63 and going to 55.

It's getting the NA 5.5 like the SLK.

Instructor at AMG event said the M157 is two inches wider. To fit it into the C class and make the front two inches larger would drastically change the appearance of the car.

slfmde

Please.... Please give the rear fenders some flare for wider tires!

cptdaz

I know the body isn't finalized but that's up with AMG looking less and less aggressive? That's one area M has it beat IMO.

jl9j

With the new 5.5 V8TT, will they badge it as a C55 or keep the C63?

That just doesn't seem right if they keep the C63 badge.

moosejaw

Current SLK55 uses the M152 engine which is a NA variant of the M157.
Does all the piping take up that much room?

Sincity

Perhaps smaller turbos to fit in the confines of the smaller bay?

bmoney12

If the CLS and E went to the 5.5 TT and kept the 63 badge then why would the C change? I don't think anyone knows what engine or badge it's getting.

AMGFANs

well is either keeping the same engine as the M156 or go with NS 5.5 with no TT..obviously they should considering a little more space for the rear seats!!

derspi

^
It's almost a CERTAINTY that the M156 will be gone and replaced, even in the C63 so you can dream all you want but the next C63 engine will most likely be either the SLK N/A 5.5 or some lower output version of the TT 5.5. I'm leaning towards MB going for a slightly higher output N/A 5.5 but I think ultimately, what they decide to officially release will have to wait until we hear an official release of the new M3 specs. After all, MB doesn't want to be outgunned in the HP department by BMW. That would be blasphemy!

jl9j

Yea...I was just lamenting on the fact that it probably will be badged as a C63 (like the E) when it really doesn't have a 6.3L (or 6.202) engine.

How are we W204 folks suppose to stand out and wear our badges with pride knowing our engines are NA and not turbo-ed!

Sorry, I just prefer NA over TT.

Fung63

just enjoy the beast you have now. external factors are pushing MB to make a TT5.5 over a super thirsty NA 6.2.

DuaneC63

The Biturbo M157 motor will put out more HP/TQ as most force induction motors do. Tune mods will be able to take greater advantage of the turbos. The turbos are intergrated into the exhaust manifolds, so you can forget about headers but it does make the plumbing easier. Moding the turbo will be complicated (ie expensive) due to the integration into the exhaust manifolds. You lose some of the V8 rumble as turbos tend to smooth out exhaust noise. I hope they let you turn off the engine automatic stop/start feature on AMG's.

SheryarYO

my theory is that they've stuck with the "63's", because it gives them some continuity like m3's and m5's are m3's and m5's every year and every model.

personally, i would prefer if they'd just badge them to coorelate with the engine size. not a huge deal if we were to go back to c55's.

black-clk500

it will be some version of the m157, probably with smaller turbos located differently. MB will not create a new engine for one car, that's crazy. The n/a 5.5 in the SLK is possible, but I think it will be underpowered for our chassis. My bet is on a detuned m157!

BTW start/stop (eco) function is already available on some AMG cars and it can be shut off with the push of a button

natman316

i hope its not the slk engine that would be a downgrade

Pickles

Who knows what the spec will be at the moment?....it's simply speculation.
The only "vague" thing I can say is that going on previous models, the C63 engine is not as powerful as some of the larger cars?
My "thoughts" at this stage would be a N.A. 5.5L, or the 4.7L TT?....but I really have NO idea.
Cheers, Pickles.

callmiro

Looks more like a C350 mule than a 63....to compete more directly with the 335

_AMG_

If AMG can get a 6.2 liter engine to fit in a C class they should be able to fit a 5.5 liter engine without any problems.
I'm assuming the turbo/manifold design is getting in the way?

CaliSun

I was at the AMG Acedemy this past friday so got to drive a range of the latest models. All the cars with stop/start technology automatically turned it off in S or S+ as well as having an Eco button to turn it off in C mode.

GrnLantern

I'm 99% sure there's no way they'd replace the M156 engine with the M152 engine (SLK55 NA V8). The NA 5.5L V8 can't come even close to putting out the same hp/t figures as the NA 6.2L V8 that it'd replace. AMG, M, Porsche, etc., these guys are always one-upping each other and one-upping themselves when models are refreshed.

If they kill the M156 after MY2013, it's got to be the M157 engine (likely de-tuned, as they've done with M156 in C63 vs E63/CLS63).

bhamg

That may happen but rear seat room is also dictated by marketing. Too much legroom in a C class translates to fewer E class sales and forgone profits. Our seatbacks are so thick...putting Recaros in would surely yield a few extra inches of legroom for the rear passenger.

SheryarYO

exactly. it's safe to say the new c class amg will have more than 451 hp and
be more powerful than the new m3 regardless of which engine they end up going with