Not as much as the shape of the car but different finishes do affect drag.
No, only the speed they are shot at.
when do you unlock paint
Are you kidding me? Of course! Red is the fastest!
They could: it depends on where they are placed.
Yes it will affect the speed of the toy car. Example: A buggy is easier to push without any groceries in it.
Aerodynamics, horse power, gear ratio,
effect of force
Metallic paint gives extra shining and rich effect to the car. Where as nonmetallic or solid paint, if polished will give glazing effect.
Unfortunately, the paint job will not affect the speed of the car.
Police use radar technology to measure the speed of a car by sending out a radio wave towards the vehicle. The radio wave bounces off the car and returns to the radar unit. The Doppler effect causes a shift in the frequency of the returning wave, allowing the radar unit to calculate the speed of the car based on this frequency shift.
The sun fades your paint. If your car is sitting in the rain, and then the sun. It doesnt just fade, it actually eats through the clear coat.
Don't know how long ago you asked this, but I will answer anyway :) Check out this map: http://www.cheats.it/images/cheats/nfsumaps.jpg The red dots are Graphic Shops, you can paint your car there.