I have a lot of road noise that seems to mostly coming from the front passenger side. New tires - continental all season extreme contact. The road noise persisted. I also have always had a clunking noise when turning tires at slow speed or at rest. Been a whirring/humming noise now for like 2 years without anything failing. Any ideas. No other symptoms even tires wear evenly.

You just need to have a mechanic or someone look at the front end. Has it been happening long enough to cause any odd tire wear on the tire? If the front end alignment is off, you could certainly get a lot more road noise, but even a badly worn tire would cause some noise.
If the tire is actually rubbing against something, and you hear it at 50 mph, that seems to indicate badly worn suspension parts- like ball joints or struts...so you should consider a good front end alignment shop and tell them the condition. They can check the tires and the front end as well. A reputable shop would check all that anyway, to make sure that the alignment job will actually keep the front end true.

If the axle nut isn't torqed tight enough, it can cause a lot of noise. Also if the brakes are worn out, it will cause a similar noise. The only other thing that comes to mind is if the splash guard is dragging on the brake rotor on the back side.

Per TireRack.com, there were four tire size options for a 2007 BMW 750i starting at 18 inch going to 21 inch wheels. You will need to know what size you car currently has and whether they are staggered (narrow front/wider rear) or the same front/rear. You will also need to know if they are "Run flat" or regular. The site has good testing articles and ratings of various brands. The Uniform Tire Quality Grade number rates tire longevity (higher number lasts longer 100= approx. 7,200 miles) and the letters are for traction (AA is best) and temperature (A is best).
Continental Extreme Contact DWS is available in your size works well as an Ultra High Performance All Season.

rear wheel bearing.

Of coarse,All Season Tires, are not for snow

You need a couple of new wheels, and dedicate them to
2 snows, of your choice.

Look at tire rack.com, just for the tire tests,
then look locally for treads you like

There are better tires than continental

When you need 4 new tires look at Cooper

Why drive side bearing could be a bad other.balance yes, tie rod could be bad.

wheel bearings or diff bearings try coasting wiht the engine shut off down a hill to listen better,or get someone who knows cars to come with you to hear the noise

since n.j. is one of the staes that the weather varies i recommend that you get all around seasonal radials tires firestone, goodyear and wal-mart they have sale going on all the time. happy driving

first off how many miles are on the car?does it only do it on bumps in the road?

Call the tirerack.com, they are the premier experts on tires in the US.