Have done OSD twice. Picked up auto accessories at the factory on the second trip. The key is to get the pricing ahead of time and compare to US prices. I found that the Volvo discount coupon (available to everyone) was more cost effective than factory. Factory prices are in Kronor so you have to figure out the exchange rate at the time to see if the factory price is better. We spent way more money in the Volvo store buying non car related items. You have to be super disciplined in this store $$$$$.