Gah that looks so familiar but I cant place it.

hint:  the main character comes back from the dead for revenge...... he is not a ghost, but a....

robocop?

I thought the same thing initially, but the cop cars in Robocop were matte black Ford Tauruses and those are old boxy K-Cars.

I dont really have a guess. Comes back from the dead and isn’t a ghost but a.... zombie? vampire? pet cemetary?

He is.... The Wraith.    Whoever reads this post first goes next !!  Here is more info on the movie if interested:

www.imdb.com/title/tt0092240/

Goin to Korea for un underground hit...

never watched a Korean movie.. did a search and found it, along with a bunch of great looking Korean movies.

"The Host"

The same as ...