You are in a team? An other advantage is that it is cheaper (software). Which software do you use for 3D?
3D modelling i'm usually fast. Do you like my Dark Power Isometric Project?
For Unity i need a new computer.
Basics of blendegameengine is easy (without scripting):
Scripting with lua and phyton is possible.
I never works with others...because I don't have some friends who want to get in... anyway, I see your project but I don't understand what kinds of game is? racing game?
Now I don't use any 3d engine for make games, I just use Unity for some experiments... I find construct2 fine for my projects, but when I decide to get in a 3d game I would use Unity (so much documentation, and a big community)...
I feel "hard" to make a good game in construct2 too, because I don't have a lot of ideas...and I lose a lot of time to think about the design of the game and sounds/music... I can't Image how I can get in a big project... I would like to make an horror/fps game like final doom, not so much difficult to make and can be a very good game with a good design of the levels and a good gameplay... and actually I have to finish like 6/7 good project in construct2...