Blackwells Holden supplies the full Holden vehicle range, whether you're looking for new, used or demonstrator. Our models include Colorado, Trailblazer, Commodore, Trax, Astra, Barina and more. Visit us at our two locations or call 03 379 5500 to book a test drive! Parts and Service If you have any questions about Genuine Holden Parts, routine service, WOF, warranty or repairs, please feel free to contact us. A friendly Blackwells Holden representative will be happy to assist. Book a service or send us a parts enquiry.