I have the 20" rims with Dunlop SP Sportmax tires from the factory. I have driven it over 1,200 miles so far and have no complaints on noise from the tires.

The tires are obvoiusly going to be expensive since they are run flats. I suggest purchasing the tire protection. It seems my previous low profile tires were a magnet for nails!!

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2007 4.8i, Space Gray, Dark Burl Walnut Wood, Black Nevada Leather

Packages:
ZCW Cold Weather, ZPP Premium, ZRC Rear Climate, ZSP Sport, ZTP Technology

Options:
217 Active Steering, 322 Comfort Access, 328 Running Boards, 496 Heated Rear Seats, 610 Heads Up Display, 655 Sat Radio, 840 Increased Top Speed to 150 MPH ,2LE 20" Y Spoke Wheels.

Mods:
Stainless Steel Pedal Pads