didsterius need to put inside square bracket like this

I will be hunting for this set 42009 later this year, most likely when overseas. Not sure will/can do CS or not, as I think it will be big box like 8110/9398. Hope Lego will shrink their boxes as what they release in news.
Let's see how it goes along ... once the pricing is out.

9398 is still newly-released set, availability is easy. The good parts are the servo-motor (auto-align), v2 infra-red module that don't eat up power, and the crawling part - going to get outdoor (not advisable) soon ...

Last night I finish the bottom-chassis. As the name says, the speed is really crawling The turning radius is not great. But the mechanical, gears, I'm impressed and can learn from there for MOC.
Anyway, I just ordered XL-motors and will try mod into it for more torque and climbing/crawling power (not speed).
Also plan to mod the battery pack. Currently using rechargable sanyo eneloop with 6x giving out 7.6V only. Plan to mod to 7 or 8x to give out 9-10V. Not yet try my Duracell AA.
Another thing to mod, is to find RC toys tyre. Want to change to more aggressive, softer material (better grip) and bigger tyres

No video yet. I'll try make a video of it pulling my Unimog which I'm planning to motorise also in future.

Seems like quite a few Technic fans active here. Perhaps we can group some names for ROI (register of interest) first, then easier to get it done later. 42009 launching in Aug.

With the 2x2 or 4x2 brick idea on Ikea frame , why not use dremel-drill the bottom of the brick to clear some area, then stick a small strong-magnet (neodymium) sideways there ? Then the brick itself is a fridge-magnet and can mount minifigs.
Of course, compared to the frame, this will be dusty/oily in the kitchen, but easy-playability for extra minifigs.

Yes, Lego are not RC. Cannot compare the speed/agility at all. If want to compare with RC, just straight get RC toys.
There is someone who open up the motor and change to RC motors, with glueing/soldering/etc. Yes, it can speed and zoom like RC cars, but that defeat the real purpose of Lego -> Constructive learning toy. Not just for playing.

Unimog is much heavier than Crawler, and the tyre contact patch is bigger, hence I have not self-study it yet. I can see there are empty spaces in the chassis for servo-motor and 1-2 motor. That is my 2nd phase. 1st phase is to practise upgrade XL motor for Crawler.