Problems with the game Flatout 1 (FlatOut)

Why, after tuning, my cars do not change, but remain rusty sobs (you will see in the screenshots - they shine and the supercharger rises above the hood), When I played for the first time in 2005, I thought that this was a problem in the video card (Radeon 7200 128mb), but now a completely new computer and this problem remains the same. Can you explain please! What is it? License from Buki ... I tried the same on other computers. Maybe there is some kind of patch for it? Help! Really needed!