I desperately need to get at least front tires for my '07 Limited Coupe (56K miles). The right front tire has leaked air fairly slowly, but now it needs to be 'pumped up' about every three days. Not to mention there is almost no tread on the fronts.

My priorities (I'm sure not yours):
Must be quiet.
Must not bang going over SoCal's quickly repaired concrete freeways.
Must have an interesting tread.
Should at least handle wet conditions reasonably well.

I really want a set of Vredestein - Ultrac Sessanta's (one diameter up to 255/40 - 19 in the rear) - but impossible to find.
I only need Summer tires, but willing to compromise since the two picks below are All Seasons.

Questions:
Will Nito 275/35ZR - 19 fit my rear wheels okay? I really don't want to go wider, but this is the closest (without going smaller) that is available.

If any of you have used or are using Nitto NT NeoGen on your similar XF, what is your take on quietness including going over bumps?

Same question but BFGoodrich G-Force Comp-2A/S?

Biba