Replacement Tires for our '09 X5 35d

[FunfDreisig]

At just under 37k we're ready to replace the Bridgestone run flats that came on our stock '09 X535d. We had planned to switch from run flats at this juncture. But even though we have the optional spare, we've decided to stick to run flats. The 35d is my wife's daily driver. She feels safer knowing that in case of a flat, she doesn't have to pull over to the side of the road. She can just slow down and drive to the nearest tire dealer.

The OEM Bridgestones have not been bad tires. But they haven't been great ones either. So we want to switch to Michelins. We have always been happy with Michelins. The 2 sets of MXV4's on our previous X5 (E53) were quiet, comfortable and good in the wet. My wife still speaks wistfully of how much safer she felt in the E53 because of how much more sure footed it was on the 2 lane twisty/turny roads, here in the hill country.

The Michelin site lists 3 different 255/55/R18 Michelin Latitude Tour HP tires that would fit a 35d:
255/55R18/XL 109 H (Part # 29309) BMW OEM 717RPM 45.6lbs ZP (run flat)
255/55R18/XL 109 V (Part # 89039) Porsche 717 RPM 34.7lbs
255/55R18/XL 109 V (Part # 26669) Porsche 742RPM 34 lbs
I called the Michelin help line and confirmed that the latter two are not run flats.

So as far as I can tell the Michelin Latitude Tour HP 255/55/R18/XL 109H (part # 29309) is the only Michelin run flat that will fit a stock '09 X535d.

Does that square with what you folks know about the Michelin run flats for a 35d?

BTW here is the pricing I've gotten over the phone.
BMW dealer - over $400/tire….
Costco - $332+15M&B w/ $70off coupon on 4 tires
Discount Tire - $302+16.50M&B w/$70 rebate on 4 tires

Funf Dreisig

p.s. Despite my best intentions, after that 1st early DIY oil change, I've fallen into the habit of letting the X5 tell me when and what needs attention.

This 35d has been an awesomely reliable vehicle. We just treat it as a work truck. Drive it on any roads. Tow heavy loads. Occasionally run it through the gas station touchless wash. It has never failed to start and run flawlessly.

Early on, that air valve thingy required replacement, we've had the steering wheel trim replaced and the battery replaced; all under warranty. That's it! Everything else has been taken care of during normal maintenance service visits. If I didn't read the service tickets I'd have never know that they replaced one of the DEF tanks, etc..

This set of tires will be our first out of pocket expense on this 35d since we bought it in Aug of 2009.