Options first available

[swooshdave]

I've been targeting the 2011-2013 models due to the price, turbos and options. I have a couple questions about when certain options were first offered and with what option packages. I've been using BMWvin.com to review installed options on potential candidates. Obviously the more options the better. I'm really leaning towards the 3rd row as it will give us added flexibility when hauling offspring and their accomplices around.

When were rain sensing wipers added? I don't see them called out, so maybe they were bundled?

What about lane avoidance, sensors that would warn you if someone is in your blind spot?

I see most vehicles are tow-enabled but I assume you just need a hitch and additional wiring?

Thanks for all your answers!