Will 245/40/18 on a 18x8.75 rim fit comfortably in my Is300 rear?
 

Basically was able to snag some rims with wheels already on em (roughly 90% tread on them still) but my dumbass forgot to check if the wheels fit all around. Took it to my tire guy and he said it was a no go on the tires themselves (rims were fine though) But after checking some Is forums, I think the dude was just trying to get me to shell $150+ to buy the tires from him because many had success in the comments, but i digress. For my rim side, what would be a suitable tire to run in the front?