The GMC AC 454 is a military truck build by the General Motors Company in the USA.

In the Swiss army the GMC AC 454 received the designation Lastw.

In 1971 a few GMC AC 454 were rebuilt by Pius Lang from the "Military-Motorfahrer-Gesellschaft des Kantons Zug" with Wood gas generator.

The Wood gas generators were mounted on civilian trucks during the Second World War.

Such a rebuilt GMC AC 454 is now located in the Zuger Depot Technikgeschichte (Zug depot of technical history).