The VB Commodore was loosely based on the 1977 Opel Rekord E bodyshell but with the front grafted on from the Opel Senator to accommodate the larger Holden six-cylinder and V8 engines, giving it a similar appearance to the Opel Commodore, the Vauxhall Viceroy, sold in the UK and the Chevrolet Commodore, sold in South Africa. Overall, the body was strengthened substantially to withstand the harsh conditions of the Australian outback. Total cost of development is reported to be over A$110 million.