My take on the cycle
1. I pay attention to women in the spring and summer
Because they wear less clothes.

2. I seem to get more enthusiastic about my cars in the spring/summer, even though I do more WORK on them in the fall/winter months....
The kind of weather that doesn't require heating or cooling is when a w116 is best enjoyed. Apart from being able to drive without cursing the A/C or climate control, tools aren't too hot to pick up if left in the sun for 10minutes or too cold. Fingers don't ache after holding a frozen wrench for too long.
3. We chatter more due to the rising of the "juices" of life during the Spring - and since this is an Aussie-dominated forum there is an uptick of posts?
There's no argument there. Spring is a pep-me-up catalyst for all the above reasons. Good driving weather and plenty of nice scenery.

Expect a flurry of A/C posts too. For me, I went into winter knowing I had to reseal my compressor. It's still attached to the engine and still waiting and I'm dreading the heat.
Spring was a bit depressing the other day though. Everywhere gets some kind of unseasonal weather and on the 15th, two weeks into spring, we had a summer's day complete with dust storm and a few spots of falling mud.

I don't much like summer out here. The first two were taken at 3:00pm

