Here is a light vehicle that I originally built in version 7128 (the most recent build I used it in is 7847).
I named it the Loot Scooter.
Its purpose was to transport me from home base to an area that I wanted to loot and then transport me and my loot back to base.
It is 3 tiles by 3 tiles (at widest). The layout is this:
123
. 4 (Ignore the period, leading spaces keep being ignored)
567
tiles 1 & 3 = frame, 17" wheel (steerable)
tile 2 = frame, headlight, large electric motor
tile 4 = frame, clock, 5-point harness, controls, seat, swappable storage battery case, storage battery.
tiles 5 & 7 = frame, 17" wheel
tile 6 = frame, solar panel, cargo space
I had a small one-man dune buggy in mind when I designed it. My mental image of it has a roll cage built with pipes around the seat, but I could not build that part in the game.
Stats are:
Safe/Top Speed: 182/320 mph
Acceleration: 17 mph/t
Mass: 1090 lbs
How fast I drive depends on obstacles but when I can I run 80 to 100 mph. I could live with 60 mph if I had too.