Short drive home from work yesterday, stopped at the shop then when I got back in it wouldn’t start. With key in position 3 it cranked about 4 times then went dead. Repeated several times and wouldn’t fire up. Suspected starter motor but couldn’t bump start it either. After 3 bump attempts I tried the ignition again and fired straight away. Any thoughts appreciated. What was most odd was the key appearing to start the starter motor turning for a few times then dead with the key still in p3.