As sister companies, we maintain common core values, a relentless commitment to excellence, both technical and client satisfaction and can now offer a more comprehensive menu of services to business clientele. If your Audi, BMW, Mercedes, Mini, Porsche or Volkswagen needs service, GPO now offers services from ColorKraft’s facility in Columbia. If your car needs body, paint or detail work, ColorKraft can do that at GPO in Nashville or arrange for transportation to our facility in Columbia - free of charge.