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This instruction set shows how to build a Knex Supercar model. I improvised this model myself with all the pieces that I had. I used the free 3D CAD software Google SketchUp to create the 3D renderings.

You can download SketchUp for free at

Download the file for the entire model here
Included are not only photos and the SketchUp file for this model, but also for my 3 other Knex supercar models, as well as some random other experiments.
If the host doesn't work, try downloading from here

NOTE: You will need WinRAR to open the file. Download WinRAR here.
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Step 1: Steering Module

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The following set of instructions show the revolutionary steering system I developed. I discovered the basic principle design back when I was 13 lol. The construction is simpler than it looks. Just follow them through carefully. Good luck and enjoy :).

Step 2: Main Body Module

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This is the central part of the model, which will contain the steering wheel and seats, as well as providing the necessary structural support for the front and back wheel modules.

Step 3: Steering Wheel, Dash Board, and Seats

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The next step is to build the interior components such as the dashboard, steering wheel, and inclinable seats.

Step 4: Back Wheel Module

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This module might be a little tricky to build, so I will do my best to illustrate the construction.

Step 5: Front Cover Module

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This is probably the hardest stage to follow, because pieces are going to be bending at all sorts of angles and there are about 14 connection that you have to make to fit it to the main body. However this is the part that strengthens the entire front of the model together as well as gives it that dynamic look. Once you have completed this stage you can pretty much put the tires on and give it a test ride.

Step 6: Back Cover Module

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The following stage will add the back cover including the fins. This will complete the chasis and framework. After this, you can put the tires on and give it a drive. However the tires are slightly modified so it is important that you look at the next step.
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CraigDH9 months ago

The link for the updated version doesn't work?

jkight10 months ago
I think I am going to need a ton more parts. I only have a single 521 value tub.
What car is this modeled after
It's a nice car, and I built it a while ago, but it had trouble with the tires. They wouldn't fit. If you could make another one that performs better, that would be awesome. :)
dude one word, awesome, although i would say it is more of a tuner than a supercar. that aside this is pretty incredible!!!!!!
...okay, so when i posted that original comment i was kind of being stupid and closed minded. i just wanted to apologize to the author and whomever was upset or confused by this comment. this does truly look just like an Australian V8 Super car and not just a tuner or sports car. my bad every one ;)
Imperar (author)  the_boss_builder1 year ago
Now worries :)
Imperar (author)  the_boss_builder1 year ago
Hi imperar , do you have a 3ds or 3ds xl?
Imperar (author)  knex dude 20001 year ago
Cool dude. I tried to build your car 4 years ago before I was on this site.
millju2 years ago
millju2 years ago
G.I. BRICK3 years ago
Yo, this car's dope man....I'm Lovin' it!!!
jmtb1233 years ago
As whats his face said
"k'nex is all about speed hot nasty speed"
This car lives up to that about 2hrs making 2 days moding I might post the tut on my mods :) 5*
blackboard3 years ago
and the car thats foling urs is going to maby have brakes and its defelinyt going to have a lockin and un locking door
I have made brakes and much more mods for this car!
sammymom553 years ago
Does anyone have any directions to make a Knex rubberband racecar?
Very wise steering module, much more solid than the one i had made ! I will make my own car though, considering I wouldn't have enough K'nex to complete this supercar.. lol ! (I want to make a convertible, with a retractable top)
do u have to have those size of tires
i say no cause u can just chang the blue rod to a white rod thats what i did
blackboard3 years ago
hey dude im gon to make a nother on like this and its going to be way differnt im going to give u half the cridet and the other half to me so its fare
mikstr25 years ago
wow! this car is AWSOME! ..... alright so listen I spend 3 hours building it, 3 minutes playing with it, and 3 seconds watching it fly down my basement stairs only to see it meet a pole in which it explodes in front of! cool right!
myles1264 years ago
post better instructions
whats wrong with them?
Boasz3 years ago
nice car 5.0
ive built and took it apart because i'm working on my own car.
jnguyen53 years ago
nice car
pokerface13 years ago
Realy nice car,
I'm goig to build it. But litlle hard to understand the instructions cuzz it is in SketchUp. But Anyways great design.
ive donnit pretty cool
jackj2223 years ago
how do u make it in cartoonie style
horse power?
love it so cool ive built this about a year GO AND I STILL GOT IT
instruct394 years ago
nice job, very cool!
Kurty665 years ago
Very nice car. Sorry to be off topic but what set(s) come with the Large tires?
go to
they sell bits individual
This is Amazing!!!!!!!!!!!
it is hyper cool i luv it :)
In the download, is there a sketch up of the car that has the rotary engine? If so, could you please post it here because bot the sites no longer work. The one with the engines your best!
MarijnS954 years ago
have u seen mine with brakes and other stuff? check it out!
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