RoyS said:
Hey guys ive had a quick read over the posts sorry if it has been asked but what are the mai differences between the 35i and 35is? Are they the same engines and turbos and just tuned differently how sbout inside? Im really tempted to trade up from the 3.0i.
There are other trinkets thrown in as well Roy but fundamentally the same car with higher power yes ,
I found Wikipedia the easiest place to digest the plethora of info available but others have mentioned its 5hit
here's a snippet from the page if it helps mate
Z4 35is
A Z4 35is outside the BMW Headquarters in Munich, Germany.
In addition to all the features above the sDrive 35is gets: 18” Light Alloy Star-Spoke Style 295 Rims, Adaptive M Sport suspension, Colour-Coded Rear Bumper insert with Diffuse Panel, Floor Mats with sDrive 35is Designation, Front Apron Air Inlets with Matt Aluminium Twist Motif, Seven-Speed Double Clutch Transmission, Brake Energy Regeneration, Servotronic Power Steering, Kansas Leather, Adaptive M Sport Suspension (35is), Extended Lighting, Metallic Paintwork (Black Sapphire, Deep Sea Blue, Glacier Silver, Melbourne Red with M Sport, Mineral Grey, Mineral White, Sparkling Brown with Pure Fusion Design Package, Valencia Orange in conjunction with the Pure Traction Design package), a Sports Exhaust (which adds an extra 10db) and a Sport Steering setup.
Options for the Z4 35is include Adaptive M Sport Suspension (which is only standard on the Z4 35is), Alcantara or Leather, Extended Alcantara or Leather with the Pure Traction Design package and Exclusive Nappa Leather with the Pure Fusion Design package. Auto Start/Stop technology is unavailable and an Optimum Shift Indicator are for cars with a manual transmission.
The BMW E89 Z4 35is comes exclusively with a computer-controlled overboost function. The boost function activates after every gear change with full throttle, and lasts for 7 seconds between 1500 and 4500rpm. During that time frame, the car will have reached 500Nm of torque for 1-2 seconds, an increase of 50Nm (37lb-ft) over the 450Nm (332lb-ft) without overboost. The full 500Nm comes in 3rd-7th gear only.
A Z4 sDrive 35i and 35is can be differentiated from other models by looking at the exhausts. If there are singular exhaust pipes on both sides, then the car is a Z4 sDrive 35i or 35is model.