Thanks for your reply.
I'm French, but I stayed/worked in Wroclaw several times and really loved it
Good job with the 3D models. Impressive.
What tool did you use?
I'm using sketchup but I can only do simple models. And it takes me like forever :/
Recently, I made a simple game for my kid and I have used 3D models from the sketchup warehouse and exported 8 frames of each model and used them in Construct (I don't bother with the smoothness for such a simple game. For a prototype I did few years ago in Flash, I used the same technique and exported something like 32 frames and it was acceptable. Of course, more frames the better ), but it took me sooo much time.
I also agree with you regarding the car behaviour and iso 3D. But someone on the forum suggested to use transparent sprites to use with a physics behavior on a virtual 2D map and draw the iso 3D sprites.
I think it might work. I'll make a prototype.
Building the car or physics behavior would be more a pain than a real problem (those behaviors exist, it's just a pity and a waste of time not to be able to use them ).
I have in mind a racing game that I'd like to make.
2D top down would make it so easier, but iso 3D gives a better feeling.