As per your request here I am providing you the lists of some of the best Used Car Dealers which is located Ontario along with their address and contact details. Please check the below list of dealers:

The list includes:

Vista Motors
900 E Holt Blvd
+1 909-984-8604

St. George Auto Sales
1153 W Holt Blvd
+1 909-984-6595

Corona Motors
1502 W Holt Blvd
+1 909-395-5554

Brooks Auto Center Inc
860 W Holt Blvd
+1 909-984-5656

Mira Motors
849 W Holt Blvd
+1 909-986-1227

Zacatlan Motors
1328 W Holt Blvd
+1 909-984-7090

Randy's Auto Sales
10993 Central Ave
+1 909-591-4116

acapulco motors
740 W Holt Blvd
+1 909-988-8868

America Auto Group
1326 W Holt Blvd
+1 909-984-2323

Reliance Remarketing
958 E Holt Blvd
+1 866-973-7724

Auto Land
1265 W Holt Blvd
+1 909-635-0719

Ontario Best Auto Sales
830 W Holt Blvd
+1 909-988-8800

FIESTA MOTORS
1020 W Holt Blvd
+1 909-986-6660

AUTOPIA
1228 E Holt Blvd
+1 909-391-1200

Variety Auto Sales
5325 W Mission Blvd
+1 909-591-4343

CarMax
4100 Inland Empire Boulevard
+1 909-466-0565

Mark Christopher Auto Center
2131 E Convention Center Way
+1 909-390-2900

Car City
902 W Holt Blvd
+1 909-984-6916

Enterprise Car Sales
5462 Holt Blvd
+1 888-227-7253

So Cal Motors
5391 Holt Blvd
+1 909-625-2800