As the premier Santa Maria Buick GMC and used car dealer, Stowasser Buick GMC would like to welcome our San Luis Obispo Buick, San Luis Obispo GMC, Santa Barbara Buick, Santa Barbara GMC, and Lompoc new & used Buick GMC area customers! Whether you’re researching new Buicks, GMCs, or used cars in Santa Maria, are ready to buy, or are looking for a reliable service and parts department, your Santa Maria Buick GMC dealership has you covered!