I have the opportunity to grab a set of TSW Doningtons for super cheap. They're 19x8 et42 which I'll probably wrap with 235(or 245)/35/19s. How far out will I poke? I haven't been very successful in finding any pictures of F54s with different offsets that are actually specified in the picture. Thanks in advanced.

 

According to this:
https://www.wheel-size.com/calc/?whe...cl=15mm&sr=0mm

235/35-19 on a 19x8 +42 wheel will stick out 17-18mm more than the OEM size of 225/45-17 on an OEM 17x7.5 +54 wheel. Measure your car to see if that fits.