。
The car wouldn't start.
Literal
That car [topic-は] move-[volitional-おう] do-not-was.
The pattern [volitional] + とする ('try to X, about to X') is used to describe an attempt or impending action. Negated: [volitional] + としなかった ('didn't try to X, wouldn't X'). Here 動こうとしなかった literally 'didn't try to move' = 'refused to move, wouldn't start.' Subtly personifies the car as having its own will.