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Theoretically, yes. However, you'd either have to give up the 15-stud width, or the properly secured axles.

This was a very quick build, but hopefully it's of use to someone. Today, Lego updated their Control+ app to include support for the 42109 Top Gear rally car. I wanted to try it, but since I already have a 42100, I really don't want to spend the extra money for the new set. Also, I really wanted to have the model 15 studs wide, so it'd be more in scale with the Corvette and the Car Transporter. As far as I can tell, this chassis should work just like the original 42109 set. Wheelbase and steering geometry are basically the same, and the smaller wheels and different gearing cancel eachother out, so it should also be just as fast as the original. Of course, the design could use some tidying up and some panels, but I think it's a good start. So if you own a Liebherr or a 4x4 X-treme Off-Roader, you can now use your existing Powered Up motors to play with a set you don't actually have. Flickr album: https://www.flickr.com/photos/28134808@N02/albums/72157712278363122

Control+ app has updated, now includes the rally car. I'm tearing the motors out of my Liebherr to build a miscolored replica to see how it works. Edit; apparently it only dropped on Android, Apple doesn't have it yet. Good news: return to centre steering works excellently. Bad news; the controller wants to mimic a real car with a gearbox. So even if you put the thing in "automatic", it pretends to cycle through different gears to accelerate. Realistic maybe, but I value speed over realism. So far, I haven't found an unbridled driving profile just yet.

We haven't seen Lego's official app yet, and I'm sure it has a return-to-center function. The new motors have rotation sensors, and the Liebherr already uses them to be aware of where the digging arm is. It needs to be calibrated every once in a while, but it works very well.

Called it; 5 12z gears inside the diff. Sadly, Lego's own Control+ app doesn't seem to be available for this model just yet.

On the other hand, the LBG gear housing does look like it would accept a clutch.

So, diff is 2 parts, a gear and a housing. Also, there's 5 tan 12z gears in the set, I bet they all go inside the diff. It's got 120 degrees rotational symmetry, so that would fit just right.

I think it's mostly due to the audience. It's got to be sturdy because kids WILL bump into everything, and that doesn't help the looks. Colours seem mostly tame to me. And as for performance; it seems to be pretty much on par with the vehicles here, most of which are built by AFOLs unconstrained by the limitations that Lego has. Price is still ridiculous, though.

What stands out to me is that Lego tries to boost sales of the smaller Powered Up sets by adding a license to it, just like the App-controlled Batmobile. I'm curious about the new diff, but not curious enough to spend €130 on it on the first day.

Now that you mention it, yeah! I really love the corkscrew part in the middle. What's the part that gave you most trouble? I bet it's attaching and detaching the chair from all the different mechanisms.

Mods, please don't move or delete this- it's still technic Following TwinLUG's Micropolis standard, you can read about it here: http://twinlug.com/micropolis-micro-city-standard/ It didn't have space for electronics, but I had to add a mechanism of some sort. I think it's a really efficient use of space.

Built for an upcoming competition.

I can't recall this ever happening to me. Y'all treating them right? Temperature fluctuations and mechanical stress don't go well together.

Anyone know what the wheels in R2D2's side arms may be? They seem to have the new 8-tooth gears inside.

Another solid build. Would've preferred more slowmotion shots, maybe.

Once again a very impressive creation, it's great to see the variety in all of your builds. I was very impressed by the first-person part of the video.

Sweet idea, good looks. Really like the lime/black assymmetry.

I recently got the Speed Champions Mini, and was surprised to learn that the mudguards also accomodate bigger wheels. After a lot of tinkering, I managed to fit a Friends figure and a steering wheel inside. (Friends cars often don't have steering wheels. This is unacceptable :p) There won't be any instructions, but hopefully this helps some people who want to build their own:

You're probably thinking of Akiyuki's basket shooter. It's a very nice module, I really like how well the decoration turned out.

Not just that. It's impractical, dangerous, and technically illegal in Quebec. Then again, if everything just needed to be practical we'd all be driving Volvos.

I'm sure no hostility was intended- tone of voice is notoriously hard to get through on the internet, nuance is lost easily. Great model, really dig the camera gimbal.

If you want to build your own car with ridiculous suspension, here you go: More pictures: https://www.flickr.com/photos/28134808@N02/ For any "what part is that?" questions, please refer to: https://www.bricklink.com/v2/catalog/catalogitem.page?P=30554b&idColor=11#T=C&C=11 https://www.bricklink.com/v2/catalog/catalogitem.page?P=21445&idColor=86#T=C&C=86 https://www.bricklink.com/v2/catalog/catalogitem.page?P=87994&name=Bar 3L (Bar Arrow)&category=[Bar]#T=C https://www.bricklink.com/v2/catalog/catalogitem.page?P=11215&name=Bracket 5 x 2 x 1 1/3 with 2 Holes&category=[Bracket]#T=C

Actually including a link or name might improve your chances getting an answer.

For anyone moaning about the price: that's the cost of advertising. And since this thing is all over the news now, it has obviously paid off. They just had to build it, all the publicity they're getting from it is 100% free.

Been using mine ever since they came out. No signs of degrading yet. And I use them plenty.