Volvo A-Plan
Volvo employees can order Volvo cars at a discounted, non-negotiable, rate through a program known as A-Plan. Additionly, employees of certain affiliated companies and members of affiliated organizations are also eligible. Are you interested in buying a Volvo, but not currently eligible for an A-Plan rate? Good news, one of those organizations is the Volvo Club of America, and anybody interested in Volvo cars is eligible to join.
The actual savings A-Plan offers varies based on the model. In general, new models when they are first released may not be discounted at all off of MSRP, while models late in their model-year may have outsized discounts. You might even find specific models listed that are selling at substantial discounts.
Normally, the process is: you log into the special A-Plan site, choose your model (if it's listed, and presumably has a discounted price you like), and you confirm your choice, and you get a code to bring to a dealer. This guarantees you the price with the dealer. You only get to generate a few (four) codes per year, presumably to stop someone from becoming a de facto dealer.
Whether A-Plan works with another of Volvo's programs, Overseas Delivery (OSD), is unclear from the documentation for both programs, but you may see special prices for OSD if you log-in. These appear to be vehicles which were made for OSD, but not delivered for one reason or another, and if they fit what you want, could be a great way of getting a cheap trip to Sweden.
OSD
Overseas delivery allows you to choose the precise configuration you want for your vehicle, from all US-spec options, and a few extras that are only available through OSD (at least in the US). You place your order with a local dealer (really, any US dealer) who collects a fixed deposit. The price is set to a fixed, and published, amount which is generally 10% off of MSRP.
You're technically buying the car directly from Volvo, and importing the (used, since you've already taken delivery in Europe) car yourself, although Volvo handles that all for you. Once you take delivery, you can drive around Europe for up to two weeks, and when you're done drop it off at one of many ports in Europe to ship back to the United States. You nominate a dealer back home, and once the vehicle arrives, they prep-it (paid by Volvo directly), and you pick-up the vehicle like a normal purchase. One of the interesting aspects, is that the dealer from whom you purchase and from whom you take delivery need not be the same.
For all but the newest models, you could very well negotiate a better price from your dealer if you can find something on the lot; but if you are the type of person who is very specific about what you want, and don't want to pass-up a trip to see where your car was made, it's a great deal.