yo!!
ok, so if you have a
(physics on the car btw)
Is In touch event-------------------apply force to position( depends on the size of your car) touch.x touch.y
every...(i did 0.00009)seconds-------and i did rotate 5 degrees towards angle
needs ALOT of tweaking... but this gives the illusion force is being applied to the car and it accelerates to the desired position with it's speed being affected by motion
slap in some immovable physic barriers for the track and boom!, you could even have some AI cars that have check points to drive to. loads of examples of these so enjoy
try it out, i'll keep working out some bugs so the angle is equal to the direction of force. thought id post my current findings though in case it helps
okk so I've tweaked around with this and it sort of works, well it works on its first time and then any other destination is just unpredictable which I think it is dependant at what angle it is at, for example turning different ways, so I'm not sure how to fix this.