Welcome To Classic Buick Pontiac  GMC of Carrollton Service Menu Page Schedule Your Service Today.  Click here for our service appointment  form. __________________________ Listed to the right and below are a list of our services and the price of each service. Call Today With Questions (469) 521-7627  Click Here To Schedule Your Next Service Appointment Today! Keep Your GM Factory Warranty Valid With: Classic of Carrollton GM Goodwrench Required Services.