A lot of time and patience. There are steps to get that kind of shine.
Wash and claybar
Wash and pre-cleaner wax
An intermediate polish
Then a few coats of finishing wax.
Even then you may not have it. This will take a few days not something achievable in a couple of hours.
i just did a 93 marquis last week. overall pretty good, but in need of some tlc to come back. started with a good cleaning to remove all residue and grime. then hit it with some heavy cut polish using an orbital polisher. then to a finishing polish, then a glaze, which is great at hiding and bringing up that wet look shine, then a sealer. once the snow is back off next week after it warms, i'll grab a picture.
lots of imperfections obvious under the flourescents of the shop, but not so obvious in the outside light. i was actually impressed with the results from the glaze.
word of warning though. if you go with a glaze, use it VERY sparingly. i went around on the body at first as you would a wax, and it was tough to remove wothout streaking.
then i continued the next day on the hood, and used about a teaspoon(or less) total on a foam pad on my orbital again, and did the roof, hood, and trunk.
in all, took me about a day and1/2 to get it done, but that included removing some areas of sap after sitting parked under a tree all summer/fall.