Power has been unleashed with the release of the Arctic Cat ThunderCat 4x4 Automatic ATV 2008. Powered by a liquid-cooled, 950cc, four-stroke engine, the ThunderCat delivers consistent performance in all conditions and temperatures. This Arctic Cat ATV also comes equipped with a forward-located air intake snorkel that reduces engine sound – a new feature for 2008. With a new performance-tuned chassis that is agile and durable, the ThunderCat is more accommodating for a variety of rider sizes. Base price of $10,499. Arctic Cat.