If I were to buy another coupe then it would be a dark blue/black with cream extended leather and piano black trimming.
something like this but with extended leather would be nice (that one is a z4m so I'd prefer the carbon leather instead of the piano black but for the 3.0, definitely the piano black)
http://www.autotrader.co.uk/classified/advert/201403172585201/sort/default/usedcars/make/bmw/body-type/coupe/radius/1501/postcode/m146bg/model/z4/page/3/onesearchad/used%2Cnearlynew%2Cnew/colour/black/image-id/e476f1829fcfbdf321facefe2cbeff65?logcode=p
something like this but with extended leather would be nice (that one is a z4m so I'd prefer the carbon leather instead of the piano black but for the 3.0, definitely the piano black)
http://www.autotrader.co.uk/classified/advert/201403172585201/sort/default/usedcars/make/bmw/body-type/coupe/radius/1501/postcode/m146bg/model/z4/page/3/onesearchad/used%2Cnearlynew%2Cnew/colour/black/image-id/e476f1829fcfbdf321facefe2cbeff65?logcode=p