I ain't gonna argue with you about it, plenty of cars have been certified with it, depending if the engineer knows/cares, doubt it's listed specifacally on the cert.
It's not best practice
I can appreciate that if done properly it's relatively safe.
Custom hubs/billet axles are a better solution.
At the end of the day, based on the o.p wanting to put 4atud wheels on a 240, it's cheaper to just buy the right wheels