Feature comparison: M3 CS vs. M4 CS

[mkoesel]

     Featured on BIMMERPOST.com

	M3 CS	M4 CS
453hp, 443lb-ft ECU tune	✓	✓
M4 GTS CFRP hood	✓	✓
M4 GTS OLED tail lights		✓
M exhaust system w/CS-specific sound and welded on stainless tips	✓	✓
CS-specific CFRP front splitter	✓	✓
CS-specific CFRP trunk spoiler	✓	✓
M Performance CFRP diffuser	✓	✓
Single zone climate control	✓	✓
M4 GTS alcantara center console w/no storage	✓	✓
M4 GTS alcantara steering wheel w/CS-specific silver center stripe color (optional)	✓	✓
Alcantara dashboard trim with embossed CS branding	✓	✓
CS-specific door sills	✓	✓
M4 GTS lightweight door cards with door pull loops, alcantara arm rests, and w/no storage		✓
Black leather seats w/alcantara bolsters in front		✓
Two-tone Silverstone/Black leather seats	✓
Style 763M wheels in CS-specific Orbit Gray; 19"x9" Front, 20"x10" Rear	✓	✓
Michelin Pilot Super Sport tires (standard, US; optional ROW)	✓	✓
Michelin Pilot Sport Cup 2 tires (standard, ROW; optional, US)	✓	✓
CFRP driveshaft	?	✓
CS-specific calibration for DSC, ABS, M DCT, Adaptive M Suspension, M Servotronic Steering, and Active M Differential	✓	✓
676 Hi-fi sound system		✓
688 Harman Kardon surrond sound system	✓
Alpine White, Black Sapphire standard colors	✓	✓
Available Individual San Marino Blue, Lime Rock Grey, Frozen Dark Blue II	✓	✓
US MSRP	?	? + more
No specific production limit made public		✓
Limited to 1200 units, 550 coming to US	✓
7:35 Nurburgring time		✓
7:38 Nurburgring time	✓

Big thanks to CanAutM3 and Parabolica for helping to collect information for this chart.



Copied as image (for everyone viewing on app). Click on chart below to see in full.

[Parabolica]

I like this thread. I would like to know all the small technical differences between the two cars.

[CanAutM3]

According to the USA press release, the M3CS will come with PSS and not PSC2 tires.

Might be worth mentioning that the M4 comes with a “downgraded” HiFi sound system (base M4 comes standard with the HK in many markets).

The press release for the M4 CS specifically mentions that the EDC, ABS, DSC, EPS, DCT and eDiff modules have been re-calibrated for the M4 CS. There is no specific mention of this in the M3CS press release. From my readings in German publication, the recalibration on the M4CS were done to better take advantage of the grippy PSC2 tires.

Might be worth mentioning the Alcantara trim with CS engraving on the dash for both cars.

Standard Full leather dash on both cars

Specially tune Sport exhaust with single wall welded on stainless steel tips for both cars.

The M4 CS door cards are not full alcantara, only the elbow rest is. Lightweight door cards with Alcantara elbow rests and pull straps but without storage bins for the M4 CS

///M stripes on the headrest for both cars

Staggered 19”-20” Lightweight 763M wheels in orbit grey for both

[Aaaaaaaaa]

Originally Posted by mkoesel

(Bear with me - I am reformatting)

[Parabolica]

Per BMW Technical Specifications:

Both have a lightweight magnesium oil sump.

Ground Clerance: M3 has 119 mm, M4 has 121 mm.

Oil Capacity: M3 is 6.5L, M4 is 7.0L.

Coefficient of Drag: M3 is 0.355, M4 is 0.36

Maximum Output" M4 is 460 HP and M3 is 453 HP.

Troque: M4 is 442 lb-ft, M3 is 443 lb-ft

Weight: M3 is 1585 kg, M4 is 1580 Kg

0-60 mph: M3 is 3.7 s, M4 is 3.9 s.

[CanAutM3]

Originally Posted by Parabolica

Per BMW Technical Specifications:

Both have a lightweight magnesium oil sump.

Ground Clerance: M3 has 119 mm, M4 has 121 mm.

Oil Capacity: M3 is 6.5L, M4 is 7.0L.

Coefficient of Drag: M3 is 0.355, M4 is 0.36

Maximum Output" M4 is 460 HP and M3 is 453 HP.

Troque: M4 is 442 lb-ft, M3 is 443 lb-ft

Weight: M3 is 1585 kg, M4 is 1580 Kg

0-60 mph: M3 is 3.7 s, M4 is 3.9 s.

You are confusing some metric vs imperial values here.

M4CS is 3.9 seconds 0-100km/h, not to 60mph

M4 CS was advertised as 460hpDIN/454hpSAE and 442lb-ft. Those figure were quoted as “preliminary” in the press release. I assume the final number is now at 453hpSAE. I can only assume the power and torque ratings will be identical for both cars. EDIT: The international press release states the M3CS at 338kw/460hpDIN 600N-m/442lb-ft, same as the M4CS. I guess the discrepancy resides in the unit conversions and round-up. 338kW=453.3hpSAE -> 338kW=459.5hpDIN -> 460hpDIN=453.7hpSAE -> 600N-m=442.5lb-ft

Good catch with the Mg oil sump.

Interesting about the difference in ground clearance and oil capacity. The later does not really make sense sinse they share the same engine.

Regarding air resistance, something is off too as the technical specs show the same frontal area for both cars, and the M3 has a larger frontal area than the M4.

[mkoesel]

Thanks Parabolica and CanAutM3.

I am wondering about the diffuser - is it an already available M Performance part? Or is it a new part created for the CS models?

Edit: That oil capacity thing has got to be an error, no?

[CanAutM3]

Originally Posted by mkoesel

Thanks CanAutM3.

I am wondering about the diffuser - is it an already available M Performance part? Or is it a new part created for the CS models?

Edit: That oil capacity thing has got to be an error, no?

IMO, the CF diffuser is the standard MP one, just like on the GTS. It is worth mentioning though since it comes standard on both cars.

I agree, I can only assume the oil capacity is an error.

[mkoesel]

Originally Posted by CanAutM3

IMO, the CF diffuser is the standard MP one, just like on the GTS. It is worth mentioning though since it comes standard on both cars.

Yeah, I had added the diffuser to the list, but wasn't sure if it was a CS-specific part. I'll update the description.

[Parabolica]

Originally Posted by CanAutM3

You are confusing some metric vs imperial values here.

M4CS is 3.9 seconds 0-100km/h, not to 60mph

M4 CS was advertised as 460hpDIN/454hpSAE and 442lb-ft. Those figure were quoted as “preliminary” in the press release. I assume the final number is now at 453hpSAE. I can only assume the power and torque ratings will be identical for both cars.

Good catch with the Mg oil sump.

Interesting about the difference in ground clearance and oil capacity. The later does not really make sense sinse they share the same engine.

Regarding air resistance, something is off too as the technical specs show the same frontal area for both cars, and the M3 has a larger frontal area than the M4.

Oops you're right, thanks. All those years of working back and forth between metric and FPS and i didn't catch that.

[audioMeth]

m3cs gauges look like they illuminate red vs white. steering wheel also looks different m4cs looks like it has a reflective strip at the center line, m3cs looks matte.

[Aaaaaaaaa]

One difference I? noticed is the little black trim in the door panels looks glossy in the M3CS whereas in the regular M3 it is matte.

[CanAutM3]

mkoesel, I am not sure if you're done putting the table together, but it's still missing the 763M 19"-20" wheels in Orbit Grey for both cars and the re-calibration of the EDC, EPS, DSC, ABS, DCT and eDiff modules is also missing for the M4CS (a "?" could be put on the M3CS side).

Could also be worthwhile specifying that the hood is CFRP

Also note that the alcantara steering wheel is not a standard item on the M3CS and M4CS.

Don't forget to add Alpine White and Black Sapphire in the colour offerings.

From the M4CS press release (and not in the M3CS one):

[CanAutM3]

I was just reading the international press release for the M3CS, and it seems that it will be offered standard with PSC2 in the rest of the world just like the M4CS.

So it seems PSS as standard is a USA only thing. Quite possibly, the M4CS will also come with PSS in the USA .

[mechanic75]

Originally Posted by CanAutM3

I was just reading the international press release for the M3CS, and it seems that it will be offered standard with PSC2 in the rest of the world just like the M4CS.

So it seems it coming with PSS standard is a USA only thing, and quite possibly, the M4CS will also come with PSS in the USA .

They can be specced either way in both the UK and Ireland, would that be the same for you guys?

[CanAutM3]

Originally Posted by mechanic75

They can be specced either way in both the UK and Ireland, would that be the same for you guys?

Not sure yet about Canada, but there is no mention of the PSC2 in the USA press release.

[aajami]

404 comparison not found.

[Rizvi]

I really thought my next car would definitely be a 991. Now I'm confused....

[Jason]

Originally Posted by aajami

404 comparison not found.

Should be able to see it on the app now.

[spuntyb]

Very cool. Thank you!

[M3 Adjuster]

Originally Posted by CanAutM3

According to the USA press release, the M3CS will come with PSS and not PSC2 tires.

Might be worth mentioning that the M4 comes with a “downgraded” HiFi sound system (base M4 comes standard with the HK in many markets).

The press release for the M4 CS specifically mentions that the EDC, ABS, DSC, EPS, DCT and eDiff modules have been re-calibrated for the M4 CS. There is no specific mention of this in the M3CS press release. From my readings in German publication, the recalibration on the M4CS were done to better take advantage of the grippy PSC2 tires.

Might be worth mentioning the Alcantara trim with CS engraving on the dash for both cars.

Standard Full leather dash on both cars

Specially tune Sport exhaust with single wall welded on stainless steel tips for both cars.

The M4 CS door cards are not full alcantara, only the elbow rest is. Lightweight door cards with Alcantara elbow rests and pull straps but without storage bins for the M4 CS

///M stripes on the headrest for both cars

Staggered 19”-20” Lightweight 763M wheels in orbit grey for both

I think you found the 3 second lap time difference..

[CanAutM3]

Originally Posted by M3 Adjuster

I think you found the 3 second lap time difference..

Not really. If you you keep on reading, you’ll find that the PSS is a US only thing and that the M3CS is shod with PSC2 standard in the rest of the world (or in Europe at least) .

And BTW, you should know that PSC2 are worth more that 3 seconds over a 7+ minute lap.

Further, to be honest, I am skeptical that they actually clocked M3CS at 7:38. I think they just took the M4CS’ press release time and put it in the M3CS’ promotional video description.