XP2 design story: motorsport suspension in a printable drift car
Why the MMC XP2 became a new model instead of an XP1 update, the follower who tested the first prototype, and the triple-shock rear.
Published 23 October 2026
The XP1 was already right as it was. The XP2 looks similar, but its concepts and systems are very different, so it made sense to make it a new model with more advanced systems instead of another XP1 update.

All-in on motorsport suspension
The XP1 took its inspiration from Nissan drift cars. The XP2 goes all-in on suspension systems that are unique in motorsport: a mono-shock at the front and a triple shock at the rear. Obviously, no Nissan has that.
A prototype tested by a follower
The XP2 has an unusual story: its first prototype was not tested at MMC. Right when it was about to be printed, the workshop’s 3D printer broke down. So an active follower, who had already printed an XP1, was asked to collaborate.
The first problems showed up on his build: belt tension, and how the rear suspension worked. Once the printer was fixed, testing continued together, and the main design problems of the rear suspension were solved.
The key decision
Keeping the XP1’s mono-shock. It complements the triple-shock rear really well.
First time on track
It worked wonderfully from day one. The problems had been solved before it ever ran, and the front end was already validated by the XP1.
From there the XP2 became the base for the most MMC upgrades, including the ground-effect aero kit. Building one? The XP2 build guide has all 37 steps.
Keep reading
- How-to and buying guides
XP1 vs XP2 vs D3: which MMC drift chassis should you build?
Suspension, drivetrain, adjustability and shopping list of the three printable MMC RC drift chassis, side by side, to help you pick the right one.
- Tech explained
Chassis flex in RC drift: how the MMC flex slider works
Why the XP1 and XP2 use a flex slider instead of a sway bar, what moving it forward or back does on track, and how to set it up.
- How-to and buying guides
How to install heat-set threaded inserts in 3D-printed RC parts
The tool you need, the trick to get M3 brass inserts perfectly square, and how to fix one that went in crooked.