Volvo has a fine automobile in the S80 T6. Mine has been trouble free; the key to which is regular maintenance. I also recommend a transmission service or flush every 40,000 - 50,000 miles at the dealer. If you plan to keep the car for several years, the servicing you do will pay dividends. This is a fantastic automobile for long trips and highway driving; especially good for moving people in comfort. Fuel economy is much better at cruising speed on the highway; you'll see dramatic drops in start and stop city driving. Highly recommended!
Seats! No one does seats like Volvo!
Better cup holders, power adjust stearing wheel, rear heated seats would all be nice.