Evening Rick. The 8V 7.5 x1 8s come with an offset of ET +51
I'm running 8.5 x 19s at +48, with 235/35s, along with H&Rs, with no rubbing, and there's room to spare. I ordered spacers (10mm front & 12mm rear) from one of our site sponsors, but am still waiting for them to arrive more than 2 weeks later. Assumimng they finally arrive tomorrow or Saturday, I'll get some pics posted at the weekend.
Anyway, plenty of the wheel suppliers say that 8.5 x 19 will fit at +40, and I'ver seen a couple of Golf Rs at this size and offset. There's a member here with a set of 8.5 x 20s on a saloon at ET +40 that's also running 8mm spacers up front and 10mm at the rear with no rubbing, but my feeling is that the saloon arches are wider / have more room.
There looks to be plenty of room on my hatch at the rear, so I'm not expecting the 12mm spacers to be any issue. I may be cutting it a bit fine at 10mm up front, I guess we'll see soon enough....
If you have a look at the aggressive wheel fitment thread you'll see
@Rabbit222 car (the saloon mentioned above) and
@Marc18 car (before air) which is pretty extreme.
Here's a snap of mine to give you an idea
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