decent revving engine/decent engine compressor like optare olympus on GAL E244 on bus route 486

Decent engine compressor like optare olympus: 0:31, 6:16, 8:00, 8:52, 9:17, 9:37, 9:41, 11:54, 14:26, 15:41, 16:01, 16:35, 17:46, 20:31, 21:12, 21:53, 22:25, 22:49, 23:50, 25:02, 25:25, 26:05, 26:35, 27:34, 28:05, 29:00, 29:48, 30:28, 30:48, 31:14, 31:48, 32:56, 34:14.