I want to change the wheels on my incoming VRS . I intend to stay with 18” , just wondered what variance in offset I can get away with without using spacers, spigots etc.

That depends on legal and insurance allowance (I'm Norwegian so I don't know the details). It also depends on what you are after. Do you look for wheels that are completely flush with the fenders, or just better looking than stock?

 

Technically it will depend on model and year, width of rim and size of tyre. Personally I would never put spacers on my car (in my country it's not legal either), it is far more safe to have the rim offset that position the wheel where you want it. Assuming Octavia, I think the rear track width was changed at FL. The wheel position was moved 15mm (?) outwards. So bear that in mind. In my head, a good looking 8x18", ET40 alloy with 225/40-18 tyres would be nice, but I am not sure about the legal aspects, and how it will be on the rear on FL version.

There are some advises here: