2 RA2lover: Yes, and I don't think it will be possible to make a scalable one.
I think the only way is make a copy with smaller parts, but why? It's an optimal size for jet/rocket engine. If you need more power - set 2 or 3 engines.
Good, but problem of your game is it's short (I've spend less than a minute to complete). I think you better make big game with many levels and checkpoints where you can stop simulation for undo (like game save) maybe some upgrades to car and so on...
Да и скорость можно было контролировать, я снял двигатели (пробовал K-NGne в ранних версиях сцены), а вообще у этого прототипа (который реальный) стояли в задних гондолах 2 двигателя от су-27 для повышения дальности полета в атмосфере.
2 ianno: please don't use automatic translator - it's sounds foolish .
2 savask: Нет, сам проект свернули, орбитальный корабль вообще утерян после обрушения крыши ангара, но ракето-носители используются.
Just great. Your vehicles are the bests! 9!
Road more like in Russia
One question - why you don't use spring in suspension? Hinges makes trolley shakes.