1999-2008 Hyundai Equus should be chassis code [LZ]:
http://imcdb.org/search.php?resultsStyle=asList&sortBy=0&yearFrom=1999&yearTo=20- 07&makeMatch=2&make=hyundai&modelMatch=1&model=equus&modelInclModel=on&modelInclChassis=- on&mk=&origin=&madein=&madefor=&role=

Hyundai Veloster should be chassis code [FS]:
http://imcdb.org/search.php?resultsStyle=asList&sortBy=0&make=Hyundai&model=Velo- ster&modelMatch=1&modelInclModel=on

1993-97 Hyundai Grandeur [LX]:
http://imcdb.org/search.php?resultsStyle=asList&sortBy=0&yearFrom=1993&yearTo=19- 96&makeMatch=2&make=hyundai&modelMatch=1&model=grandeur&modelInclModel=on&modelInclChassis=- on&mk=&origin=&madein=&madefor=&role=

I seen in a few places that the Genesis Coupe code is [BK] (the sedan is [BH]), but I'm not certain.
http://imcdb.org/vehicles_make-Hyundai_model-Genesis+Coupe.html