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Jupiter Motors

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Jupiter Motors
JM Logo.png
Senior staff
Founder Willowars
CEO Willowars
Head of Research/Development Weier
CFO, Marketing/Sales Manager, NE District Manager CodyHM
Facts and figures
Headquarters The City of Seoland
Second Headquarters Savage City
Founded September, 2018
Company Locations The City of Seoland, Sunshine Coast, Savage City


Jupiter Motors is a company founded by willowars. It focuses on designing rolling stock for other companies and for WillowTrans, the municipal transit in Willow. The company is looking for new members to put in designs or to sell. Trains used UIC classification but newer trains will use AAR wheel configuration.


Since 2019, after complaints from Cact0 and TheGreenKangaroo, JMinibys 1A and J Class A1 and Class G1 have been removed from JM's lineup, but remain in the wiki.

Promotional Material

JM ad1.jpeg JM Unlimited.png

Order a piece of rolling stock

To order any piece of rolling stock, go to and enter in the model number and quantity of any stock found below. We also do custom stock for city transit agencies. For more information, please contact CodyHM via discord CodyHM#2241.


Name Creator Features Cost Image
Minibys 1A willowars A small, slow, boxy and ugly bus that is cheap but reliable bus that is used as a shuttle. No Longer For Sale
Minibys 1A and 1B (Minibys 1A is on the right)
Minibys 1B Weier A better-looking version of the Minibys 1A. It is shorter and looks aesthetically pleasing. 3$ per bus
Bus 1A Weier The first bus to be used on intercity routes and high occupancy routes. 5$ per bus
J Bus 1A
Bus 1B willowars A longer version of the Bus 1A. 5.5$ per bus
Bus 1C Weier A slightly longer 1B with air conditioning. 8$ per bus
Bus 1D Weier This bus is more unique because of its 4 block width. It's the tallest and current longest bus of JM. 10$ per bus
Bus 2A willowars This is known as a Longbus in JM, and it's used for city routes with high occupancy. 6$ per bus


Name Creator Features Cost (free testing and prototype engines) Wheel Arrangement Image
Class A1 willowars First train by JM Discontinued Co-Co
J Class A1 with G1 beside it
Class B1 willowars and Winter_Wubway Improvement of Class A1 10$ per set Co-Co
J Class B1 with G1 to the left
Class C1 Winter_Wubway Streamlined Locomotive 7$ per set Co-Co
J Class C1
Class G1 willowars A diesel engine that runs on 4 block gauge Discontinued 2-Bo-Bo-2
Class G2 Weier and willowars
(modifications from Supykun)
A five block-wide bullet train customized in request of Juhwa Islands.
Design altered from original design to standardize with JHR regulations.
Not for Sale
Class G2-1 Weier and willowars A five block-wide bullet train. The original Class G2 design.
Class E1 willowars and mi_aquamarine First Electric Locomotive by JM, inspired by Shinkansen 0 Series 8$ per set Bo-Bo
Class S1 willowars An electric subway commuter train 7$ per set C-C
Class "Shunter" willowars A steam train that should be dead but instead still being used to shunt train cars. Free, but can't pull long distance. 0-6-0
Class S2 "142 Pacer" willowars (design from London150) Based off of the British rail class 142 "Pacer" that can't pull cars. 8$ per train B-B
Based off of the BR Class 142 Pacer
Class B2 willowars Based off of MP40-3C Go Train 9$ per train B-B
The J Class B2 in willowars' lab

Passenger Cars and Freight Cars

Name Use Cost (if any) Compatibility Image
J Car A1 Tall Carriage 1$ per car Compatible with A1 and C1 but not recommended
J Car A1.1 Shorter version of A1 1$ per car Compatible with A1 but not recommended and C1

Manufacturing Plants

JM has bus manufacturing plants in Seoland and Sunshine Coast, that mass produces the J Minibys 1B and J Bus 1C.

Seoland Bus Factory

The Seoland bus factory is located in Eastern Seoland and manufactures the J Bus 1C and J Minibys 1B. It is currently being finished.

Sunshine Coast Factory

This was quite a challenge, as the factory was built under the SSC Beltway and currently produces crucial engine parts and the J Minibys 1B. It is more modern and slightly aesthetically pleasing.


Weier: Co-Founder, CodyHM, MaxStewartS