1999 Cadillac STS 300 HP code 9 Northstar V8 $1,889 OBOSix cars in the heart of City is just way too many to deal with. Offering up our 1999 Cadillac STS. This car is fully licensed and insured and being driven, Valid eTest as of November 2016.Having owned 4 Northstar Cadillac powered vehicles I can tell...