With 3,662 versions, 18 inch is the largest size group in the range, spread across 18 brands. 3,124 of these are available from stock, with prices starting at €77.
The size covers compact and mid-range cars as well as many SUVs. The most popular are 5x112 with 1,472 versions, 5x114.3, 5x108 and 5x120.
With this selection, it's worth setting the bolt circle first and then narrowing it down by offset, width, and color. Approval always applies to the specific wheel-vehicle combination, not to the model series.