I am about to go to N. Dakota for several months in the winter! I want to get heated seat covers for my W123. What do you have, and would you suggest them?

I would like a heat/massaging one for the drivers seat, and just heated for passenger. Any suggestions?

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My Primary Driver - '85 300CD - 4-speed conversion, 2.47 rear, lowered, euro headlights, rebuilding (not restoring so much)

Wife's - '08 Saab Sportcombi Aero

Riding a '03 Yamaha Warrior