Thought I'd contribute here my setups.
BMW Style 63 (with a 10mm spacer front and back)
Front: 19x9" ET48 Tyre: 225/35/19
Rear: 19x10" ET45 Tyre: 255/30/19
IMG_8067 by
Neil Patel, on Flickr
257. Done by
Neil Patel, on Flickr
Rial Daytona
Front: 19x8.5" ET14 Tyre: 215/35/19
Rear: 19x10" ET35 Tyre: 235/35/19
DT5_7937 by
BMW Car Club GB & Ireland, on Flickr
IMG_1610 by
Neil Patel, on Flickr