The Kuwaiti car market is similar to its neighbour’s, Saudi Arabia. 2 of the Top 3 likely best sellers are imported from Australia: The Toyota Camry should be the leader, and the Chevrolet Lumina (aka Holden Commodore) could be #3. The Toyota Hilux should come in 2nd.
Toyota is very strong in Kuwait with the Toyota Prado, Land Cruiser, Corolla and Yaris sedan also reasonably successful, as are the Chevrolet Tahoe, Mitsubishi Lancer old gen and Honda Accord. This speculation is based on the observation of the streets of Kuwait City through recent YouTube videos. If you have additional infomation, please make sure to get in touch!
More photos below.