Cadillac Dealer Cadillac XLR Roadster Olathe KansasCadillac Dealer Cadillac XLR Roadster Olathe Kansas. http://www.VanCadillac.com or call 816-256-4883. Van Cadillac has the best deals on new and pre owned Cadillac XLR Roadster vehicles in the Olathe Kansas area. We are a short drive here in Kansas City Missouri.