View Single Post
      02-26-2009, 05:11 PM   #12
footie
Major General
footie's Avatar
No_Country
1072
Rep
8,008
Posts

Drives: i4M50
Join Date: Oct 2007
Location: No where fast

iTrader: (0)

Garage List
What weight do you think the Z4 35i will be?

The reason I ask is instead of either a fabric roof or even a solid metal roof the new one has a folding metal roof with it's mechanism which all add weight. In the M3 the folding roof's weight increase is 230kgs and though the roof size on the Z4 is smaller it should still cause an increase of at least 150-160kgs.

The old Z4 3.0si had a weight of 1395kgs and the new 35i should probably increase this by about 50kgs (roughly the difference between 330i and 335i), so without any roof change the old Z4 with the 35i engine should weigh approximately 1445kgs, the new car is slightly bigger and with more safety equipment it will probably weigh a little more, increasing that 1445kgs into a realistic figure of 1465kgs.

Hopefully you are still with me by now. So to recap, I reckon that a new Z4 with the 35i (N54) engine if it had a fixed roof would weigh about 1465kgs, now add the estimated weight of the folding roof and mechanism of 150kgs to the 1465kgs and you end up with a new Z4 35i weighing approximately 1615kgs.

It's hardly a light weight or the lightest car to use the N54 engine.
Appreciate 0