The following link lists several amendments to the articles of incorporation of Hanna-Epprecht Datsun, Inc. with the earliest date being 1980. Walt Epprecht and Gary Hanna are listed as the principals. Addresses listed in the documents include 3470 Boulder Highway and 5606 So. Eastern Avenue, both in Las Vegas.

http://sec.edgar-online.com/1997/11/20/17/0000950136-97-001682/Section4.asp

Another hit shows that Walt Epprecht Dodge made a campaign contribution to Chic Hect's campaign but I can't tell the year. I would assume it's pretty recent, maybe the last election.

http://cspan.politicalmoneyline.com/cgi-win/x_candempocc.exe?DoFn=&CandID=S2NV00043&sYR=88&sCANDNAME=HECHT,$CHIC

This next link shows where Walt and Gary Hanna jointly owned what looks like a car lot on Sahara, one block west of Fremont (maybe 3250 East Sahara?) on a deed recorded in 1985:

http://sandgate.co.clark.nv.us/servlet/Assessor?instance=pcl2&parcel=162-01-801-017