Napleton Cadillac Hammond, IN | Cadillac Dealership sells new and used Cadillac cars, SUV's and Cross-over vehicles including CTS, Escalade, SRX, STS, XLR | Serving Indiana and Illinois communities of Hammond, Lansing, Chicago, Calumet City and Gary | Financing Sales and Service | Napleton Auto Group is Chicagoland's Largest Internet Dealership. | Napleton Cadillac Hammond, IN | Cadillac Dealership sells new and used Cadillac cars, SUV's and Cross-over vehicles including CTS, Escalade, SRX, STS, XLR | Serving Indiana and Illinois communities of Hammond, Lansing, Chicago, Calumet City and Gary | Financing Sales and Service | Napleton Auto Group is Chicagoland's Largest Internet Dealership.