Well it wasn't long before i beat extra5 but unfortunantly extra6 has the same problem- multiplied many times. I get to the 6th stage of the test and for no explicable reason the cars just fall through a perfectly level deck as they roll onto it. I dont meant o be rude but it's not a challenge- it's a bug.
I can't beat extra5, (and barely beat extra03) because the cars and train keep falling through the deck

This is a bug that really needs to be fixed! Top priority!
I've been told by Josiah that the next patch includes a fix for this bug.
On extra 6, you can get around it by building a deck segment from the anchor in the other direction from your bridge. Put one end of the deck at the anchor, and the other end a little bit above the ground farther away, and don't put any other connections to it -- just leave it floating in space.
When you run the simulation, the far end of the deck falls to the ground, no links broken if you didn't put it too high, and the vehicles drive on the bridge just fine. It appears that the map texturing slopes the ground just slightly as it approaches the bridge anchor, causing the vehicles to be below the bridge, and fall through.
Just to stress it: I completely agree!
The extra levels are designed to be weird and different, taking the bridges to the extreme. This can cause difficulties with the trains or cars, that's part of the challenge.
Josiah
I am also having the same problem on Extra5. I dont see how this is part of the "challenge" in that the bridge should work and the incline is not the great yet the #### truck keeps falling through.
I guess you assumed the cars only do that on the 'extra' levels, which, of course, isn't the case.
In fact, almost any inclined deck lets the cars fall through, which can't be by design.
Instead of falling thru the deck, they should stop and make smoke as if they're broke. Maybe the wheels can fall off and bounce off the bridge.
Imagination
If the cars hit the deck very hard they should explode with a large mushroom cloud and destroy a part of the bridge. ;)
/Imagination.
(Edited by Dreadnough at 10:06 pm on Oct. 22, 2002)
I've had this problem with trains as well, but it's not as bad as with cars... Please fix this, it's really annoying !