Timerover51
SOC-14 5K
A low tech 38 passenger wheeled vehicle by the Fillform method.
Truck Wheeled: TL6 Tons=4 Speed=5 Load=3
Heavy TL+1 Tonsx2 Speed- 1 Load+2
Heavy Truck Wheeled: TL7 Tons=8 Speed=4 Load=5
Fossil TL-2 Tons+2
Air (Open) TL-2
Heavy Truck Wheeled Fossil Air: TL3 Tons=10 Speed=4 Load=5
Add a cargo module Tons+1 Speed-1 Load+1
Heavy Truck Wheeled Fossil Air: TL3 Tons=11 Speed=3 Load=6
Total: Load=6 can carry 24 passengers in basic conditions i.e. bench seats. 11 tons of vehicle equates to 11 operators and passengers. Total carried is 36, so we can say 34 passengers, a driver, a fireman.
As designer I look at this an decide its a steam powered charabanc that motors along at 20kph. Its actually quite advanced by Terran standards, the equivalent charabancs on Earth during TL3 were still horse drawn. Its open to the air and has no Armor or Protections to speak of and is assumed to be for Local travel because it needs some form of refueling and/or maintenance on an hourly basis (oil the valves, shovel on more coal type activities). Cost ~170KCr
An alternate explanation is to call this a tram and say its confined to follow tracks (wheeled vehicles are also a route to designing locomotives). This may be a more plausible explanation given the TL.
The vehicle will fit inside a design box or bounding box 3m wide, 3m high and 16.5m long, however the actual dimensions of the vehicle will be less. If you get into an area thats 3m wide or high, or if you try parking in a space 16.5m long I suggest you start rolling checks against Driver Skill. For storage aboard a starship in ready to drive off condition allow 11+1tons
There are of course other possibilities that I may have overlooked because I was driving at getting the TL as low as possible. Building a smaller vehicle and adding passenger modules might also be a route to the desired vehicle.
[Edit] Corrected passenger capacity to 4 passengers per ton of Load.
I have not forgotten this, just was doing some research on it.