Sort of a shame the seller couldn't take the time nor effort to clean it up some, to show off its beauty....... As it is, I would say the price might be high, but clean it up, and it might be low.
What's this, an epidemic of sanity in pricing? True, the seller could probably ask $3950 if he had the local high schoolers wash it for him, but all in all, I think the asking price is quite reasonable. For contrast, check out the '63 and three '64 Country Squires on ebay, each a BIN at over $30K. Even if you weren't keen on '70s cars, you'd have to be tempted by the price of this CP.
Are we seeing dirt or paint issues? I know it's old enough to now have clear coat unless it was refinished, but I still wonder. The seller says the paint's faded so I expect it needs polished.
Here's the ad for reference: 1977 Mercury Marquis Colony Park Station Wagon - $3900 (Los Angeles) 1977 Marquis Colony Park condition: good cylinders: 8 cylinders drive: rwd fuel: gas paint color: green title status: clean transmission: automatic type: wagon Very rare Mercury Marquis all original all is working in very good condition Inside are all original and in very good condition dont need to anything. All lights are working radio clock etc. Paint is faded but has a look. Chrome very good Power windows Klima Automatic 7.4 l engine 5-door wagon body type RWD (rear- wheel drive), automatic 3-speed gearbox petrol (gasoline) engine with displacement: 7536 cm3 / 459.8 cui, advertised power: 147 kW / 197 hp / 200 PS paint is faded all in good condition Running condition no dents Chrome good condition Radio and clock working Vacum Headlamp working ( few things you need to take care off) need: new A/C compressor $134 need a window roller. $25 need new tires $ 250 great car