The top-of-the-line Mercury wagon for 1983 was the sumptuous Grand Marquis Colony Park, which started at $10,896. Just below it in prestige came today's Junkyard Gem: the $8,974 Grand Marquis Brougham (that's about $23,300 in 2019 dollars).
Wagons sold well enough in the early 1980s that Mercury offered three completely different wagon familes: the Marquis, Cougar, and Lynx (the Cougar wagon got axed after 1982).
The regular Marquis had split off from the Grand Marquis for 1983, with the former a midsize car sharing the Fox platform with the Mustang and the latter a sibling to the full-size Ford LTD Crown Victoria (not to be confused with the Ford LTD, which rode on Fox underpinnings).
The traditional smoker's vent window seemed crucial when Dad chained unfiltered Pall Malls during family road trips, and the Grand Marquis kept this feature until the 1992 redesign. At that point, the station wagon Grand Marquis went away (because wagon shoppers had switched to Ford Explorers and the like) and the Grand Marquis stayed sedan-only all the way until Mercury's demise in 2011.
The California sun really brutalized the "wood paneling" on this car over the decades, but you can still make out the grain.
The engine was gone by the time I got to this car, but it would have been a 130-horsepower, 5.0-liter V8.
I couldn't find a commercial for the '83 Grand Marquis, but here's one showing its Ford-badged counterpart. Just substitute "Lynx, Marquis, and Grand Marquis" for "Escort, LTD, and Country Squire" for the cars in this ad and you'll have it right enough.