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      11-06-2012, 09:10 AM   #6
Brigadier General
ken1137's Avatar

Drives: a slow 2009 e90 335i
Join Date: Jun 2011
Location: Chicago

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2009 e90 335i  [3.20]
The 135is and Z4 35is have the same engine and are about the same so it depends on the driver:
Wt goes to 135is @ 3439 (about 100lbs lighter).
Hp goes to Z4 35is @ 335hp/5900 rpms (15 hp more).
torque goes to Z4 35is @ 332/1500 (15 more).
0-60 same 4.8 seconds (if DCT for 135is).
1/4 mi guessing about 12.8 for both.

I have had the opportunity to drive both. The z4 I drove was a modified Eissenman version, very fast, and lots of fun. My 135i was modified with 400 rwhp (FBO + Cobb Stage II), very fast, loads of fun, put a smile on my face each time i drove, and very tossible. Both are excellent cars, but since I have owned a 135 I will probably buy a Z4 35is at some point in the future.

I dont think the Z8 counts...the one I saw was powered by the M V-8 engine.

BMWCCA member

Last edited by ken1137; 11-06-2012 at 09:13 AM. Reason: comment