Take a look to these on the SD Wiki (Thanks Xavier for the tip): https://sourceforge.net/p/speed-dreams/wiki/SetupCars/

Why wouldn’t it work? I’ll have to go for a ride with him again.

Omg ya, the beach buggy the tuktuk and a car I converted the slambo, haha I’m sure it felt longer then 11 year since I released them.

Was using a mix of inventor and ac3d to model back then.

Right now modders usually use blender with the plugin to import/export to .ac . Of course AC3D is still a good tool for modelling for SD. https://github.com/NikolaiVChr/Blender-AC3D/tree/4.1

We think that your cars are in this collection: https://github.com/longtomjr/sdcars

Great! What mods have you done for SD?