[harbro auto sales | used car dealership | whitinsville, ma we are a family-owned and operated used car dealership in northbridge, massachusetts. we have been in business for over 50 years and have a reputation for providing our customers with quality used cars at competitive prices. we offer a wide variety of used cars, trucks, and suvs, all with upfront pricing and no hidden fees. we also have a no-pressure, haggle-free environment to ensure a comfortable shopping experience.]