You can edit your own Mission in Driver Demo (v5.6u):

Open the file Mission661.dms (in SubDirectory Scripts/Missions) with
something like notepad.

Some basic commandos:

StopPlayer                Should be at start of script
LoadMap "Map.lev"         Does not! Load a Map. Joke! Loads a map
Snowing                   Snow-effects (looks bad in my demo)
Raining                   Let it rain!
Night                     Night Driving
Darknight                 Darker than Night Driving
Foggy                     Fog
Lightning                 The Sun will shine, the birds will... OK, It is
                          what it sounds like
Cops_off/Cops_on          toggles cops on/off
SetMaximumCops x          Set maximum count of following cops
Cops_Respawn x            Set Cop Respawn rate to x seconds
SpawnCops c,x,y,z         Spawns CopCar at given coords (c is for count.
                          coords must be entered for each car)
AddCivCar a,x,y,z         Spawns Civilian, lika above
EnablePlayerDamage        Player Car takes damage
DisablePlayerDamage       Player Car is undestroyable
MaxPlayerDamage x         Set how much damage your car can take (0 to 4096*6)
CountDown x               Starts Demo-Time (disable with //)
PlayerCarType x           Set Player Car (range is 0 to 17)
ReleasePlayer             Here the Mission actually starts

To continue driving after loosing the tail, you have to change the following
lines:

Set Objective 1
NeedToLoseTail 0

The File is proceeded from line to line, so think about the right placement
for your modification!

If the game aborts while loading, something you changed has gone wrong.
Search for wrong parameters (i.e. PlayerCarType higher than 17 or too less
or too much coords for SpawnCops)
A simple rule you should follow: Don't change to much at one time
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Alex Bartmus, AlexBartmus@gmx.net