A spacer will reduce the ET number, so ET7 will become ET2 with a 5mm spacer.
At ET7 these wheels already stick out a little too much, a spacer just makes it worse.
So...I wonder what they were made for? A 6 series perhaps? The price seems great, but if they don't fit the car, who would buy them? That may explain the low price, but they have to fit *something.*
My 2800cs has drum brakes and the small discs in the front. I may be interested in buying them if we can get them to the US cheaply.
PM me