Any idea why this won't work?

Trying to figure out how to make some beginning script changes to the starter.racing example. All modifications in the game.cs file.

Just for starters, I want the car to "jump" periodically. I started off by adding some code at the end of the GameConnection::onClientEnterGame function.

function GameConnection::onClientEnterGame(%this)
{
...blah blah blah...
MissionCleanup.add( %this.camera );
%this.camera.scopeToClient(%this);

// Client controls the camera by default.
%this.setControlObject(%this.camera);

if(!$Game::Running)
{
// Create a car object.
%thiscar = %this.spawnCar(); //was %this.spawnCar();
schedule(7000,jumper,%thiscar);
echo ("car here = ",%thiscar);
// Orbit the camera around the car
%this.camera.setOrbitMode(%this.car, %this.car.getTransform(), 0.5, 4.5, 4.5);
}
}

First, I couldn't find out how to refer to the car in other portions of the script. %car, %this.car, nothing I tried seemed to be the right object. Should I make it global? The function originally didn't seem to pass it back out, so that other script functions could see it.

Anway, to fix this, I put in %thiscar = %this.spawnCar(), intending to pass the %thiscar to my scheduled jump function below.
scheduled it to run the jumper function in 7 seconds.
Note: At no point, do I see any input at all from the echo ("car here...") statement.

Moving on...

Here is my jumper function:
function jumper(%car)
{
echo ("car = ",%car);

if (isObject(%car))
{
echo(%car.getTransform());
schedule(5000,jumper,%car);
}

}

This function is declared in game.cs, just like the other.
I get no output from the echo statements, nada.

Can anyone explain just what I'm missing here?

I also tried putting in the key mapping to keybind space to a jumper function. No luck there either.
Thanks!