Difference Between the z4 35i and 35is

[Z4MAD]

To the aficionado's of Z4s this may seem an unusual question, but could someone explain, please, what the differences are between the z4 35i and the Z4 35is (I am aware that the 35is has more power via a twin turbo) but other than that I am unable to establish whether there are other differences.

I thank you in anticipation of your help and assistance.

With kind regards,

MAD

[Ole gits rule]

No expert here in but suspension is one while 35i can be manual or auto but 35iS is auto only.

35i seem to be SE spec while 35iS are normally M Sport

Thats where my knowledge stops

[enuff_zed]

's'

[Smartbear]

Both have the same engine, extra power is software generated
Rob

[Chippie]

35is has adaptive suspension as standard, extra bhp due to overboost,(both can be remapped to the same bhp), only available with DCT gearbox, (no manual), “is” on door cill plates(edit “m” on cill not “is”), logo on instrument display and on mats, possibly sports steering wheel, think that’s about it everything else is an option

[Bombardino]

Silver wing mirror caps on the 35is, I think they help it slip through the air quicker.

[Chippie]

The 35is also has a “sports exhaust +10db”
Exterior mirror casings in Oxide Silver, Matt (not in
combination with Valencia Orange)

[Chippie]

Taken from the 2014 sales price brochure

Z4 sDrive35is (In addition / replacement to Z4 sDrive35i M Sport)
█ 18" light alloy Star-spoke style 295 wheels
█ Adaptive M Sport suspension
█ Colour-coded rear bumper insert with diffuser panel
█ Exterior mirror casings in Oxide Silver, Matt (not in
combination with Valencia Orange)
█ Floor mats with sDrive35is designation
█ Front apron air inlets with Matt Aluminium twist motif
█ Seven-speed Double Clutch Transmission (DCT)
█ Sports exhaust (+10db)
█ Sport steering setup
RRP from £44,535 inc. VAT
PURE TRACTION DESIGN PACKAGE
PURE BALANCE DESIGN PACKAGE
Includes:
Includes:
█ Alcantara/leather combination in Black/Orange
█ Headlining, Anthracite
█ Metallic paint colour Valencia Orange1
█ Metal Weave trim
█ Sport seats
From £550 inc. VAT
█ Exclusive Merino leather in Cohiba Brown
█ Fineline Anthracite wood trim, High-gloss
█ Sport seats
From £1,250 inc. VAT

[Pondrew]

Two differences that have been overlooked:
Bragging rights and cost

PS: @MAD; sorry to see you're back on the medication, judging by the composition of the first post

[tiglon]

Two differences that have been overlooked:
Bragging rights and cost

PS: @MAD; sorry to see you're back on the medication, judging by the composition of the first post

Bragging rights? I think anyone on here bragging about having the 35is would quickly be drowned under a sea of:

"35i plus remap is better"
"You paid for some marketing scam"
"20i plus remap is better"

[Z4MAD]

Dear Comrades,

It is my understanding, although perhaps erroneously so, that the BMW Z4 35is has twin superchargers; does the BMW Z4 35i not have the superchargers, and is this the aspect that makes the difference in power which the BMW Z4 35is has over and above that of the BMW Z4 35i?

It has also been mentioned that the BMW Z4 35is has different suspension than the BMW Z4 35i, should this be the case, may I be advised, please, what the differences are?

This is a serious enquiry; therefore I should be most appreciative that those of an contrarian nature should resist the temptation to respond.

Thank you and kind regards,

MAD

[markplant]

Both have turbochargers, same engine , different stock map, both can be remapped to the same as it's the same engine

[Pondrew]

They both have N54 twin turbo lumps, no superchargers on a BMW. They are twin turbos, not twin-scroll single like the 4 cylinders. As said above the only difference is the engine map.
The 35is has adjustable hydraulics (little pumps) in the dampers. These alter the damping rate depending on the driving 'mode' selected.
IIRC they were an option on (all?) other models but were very expensive so not many have them (also very expensive if they go wrong).
NB All the above is information gleaned from the forum as I know feck all.

[The.Analyst]

When I looked at it there were only a very small number of items that a 35is must have that didn’t occur elsewhere..

The speedo marked with 35is

The car mats marked with 35is

340 bhp ish vs 304 bhp plus an overboost function for 7 seconds

Louder exhaust

That’s it..

Everything else was not necessarily mandated and or could be deleted

So silver mirror caps were not present on all 35is

Badges could be deleted

So a 35i needs a 35is speedo, car mats and exhaust plus a software reload to become the minimum case 35is assuming it has adaptive suspension and a DCT box.

[Marcoose]

Chicks dig the ‘is’. They throw themselves onto the bonnet, through the windows. It’s the ultimate babe magnet. After every drive, I end up in bed with a hottie. That never happens with the ‘i’.