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
I thank you in anticipation of your help and assistance.
With kind regards,
MAD

