When was it decided that the Autobots couldn't fly?
I remember in the first story the Autobots were able to fly, making their transformation into driving vehicles rather redundant for anything other than disguise.
I also remember an episode with a young Optimus being impressed at Megatron because he could fly. I'm not criticising the continuity error but I was just wondering when their powers were altered and whether there was anything said in-show to clarify it.
'The time you enjoy wasting is not wasted time'