Based on what I've read here, your car doesn't have the self-levelling shocks. I could be wrong, but thought I'd throw it out to you. There are many "kits" available to lower vehicles.
Search function will probably turn up many hits.
1995 E320 40K
1999 Tahoe 90K
2002 JX8 Sport 43K
2005 Volvo s40 65K