I don’t know how much CaDA influences the design. But the approach is quite different to Lego. If Lego builds the chassis, then adds on top, in a horizontal manner, CaDA builds vertical slices: engine, cabin, transmission, and then joins it all together.
The way pieces are grouped is also totally different. As I mentioned, you have 7 different parts you need to build, but for each part there are multiple bags that seem to be grouped by the type of the piece, not where it fits. So you have gears in one bag, pins or axels in another, and so on. I spent a lot of time just sorting those into finer groups.
CaDA also uses some pieces I’ve not seen from Lego. Notably the strange angled pieces. Lego angle is the same thickness. CaDA has thickness 2 going to thickness 1.
Because the bags are just types of pieces and there are just 7 major blocks to build, you have to manage your own time. Unlike with Lego, where I knew 1 bag = 1 hours, give or take. It’s much more difficult. I spent 2:30 hours in 2 sittings, and haven’t finished the 1st block. Got stuck for a long time on this piece called 7-9L Linear Actuator because it just wouldn’t fit. Turns out, it has a screw inside, so you can adjust the length, and I put it in without adjusting,
Tag: Lego
When I was ordering from AliExpress, the only option available was without a box, so I’ve got mine wrapped in a bag.
Lego model was divided into 23 bags, although some contained smaller bags inside. CaDA divides its bags into 7 groups, each group is about 8 bags. And some extras, like wheels and tires. Wheels are slightly smaller than of McLaren P1, not sure what’s the reason for that, as both should be 1:8 models.
Lego is often criticized for using blue pieces. Those provide more friction, but they do stick like a sore thumb if left exponsed, like on the McLaren P1 front panel. No blue pieces in those bags. We’ll have to see if CaDA uses same color for pieces of different friction, or they just use frictionless black pieces for everything.
Lego McLaren P1 42172
Over New Year I finished my Lego McLaren P1. As I predicted, two wrong pieces in bag 11 came to haunt me in bag 23, the last bag, as the engine lid wouldn’t close properly.

Luckily, Lego has a piece delivery system, which doesn’t even require receipts. You just specify which set you are doing and what pieces you are missing.
I’m glad that I submitted the request on the 1st of January, because I received the items only a couple days ago.
But now it’s finally complete. Took 23 sittings, per number of bags, and around 15 hours in total. I didn’t try to rush it, though, had no reason to.
Next, I’ll give CaDA a try.
Lego McLaren P1 42172
Finally got to opening it. And it is very impressive. The entire packaging is incredibly smooth and well thought. How the two hefty manuals represent front and read half of the car, how they seamlessly blend into the lid, how flaps of the three boxes with pieces overlap to show a photo of a real P1, with a photo of the Lego model 1:1 underneath.

Putting a single bag took me an hour, but I also didn’t rush. This is the most complex Lego set for me for sure. There are parts that have to be left loosely hanging until later, and the way everythinng is held together is not so much by clicking it, but with using pins.
https://www.bricklink.com/catalogList.asp?catType=P&catString=139


