People from all over the Hartford County CT area to buy and service their Chevrolet and Buick vehicles at O'Neill's Chevrolet Buick, a member of the Sullivan Automotive Group. We've been providing Chevrolet and Buick customers from all over Connecticut, from Terryville to Canton, to Hartford with a customer service experience second to none. It's why we have so many loyal customers who continue to buy and service their vehicles with us year after year.