Algodoo

Interesting but too stiff. Multiplying mass by 4 gives much more realistic results.
Aaaand... Its weight is 5 kgs. Made of styrofoam.

Sorry im really bad at math if you compare my Cars with xxpro Cars and any other that people Made my Cars are weaker,cuz my Cars are different
Also idk why sometimes i've got fps problem if adding to much weight cuz i play the Algodoo on weak PC, at first when i try to make Car physics like xxpro and Lucas im failed and end up making my own