UCP Supercar II - Page 15
Originally Posted by Coventrysucks
Here is a generic example of the type of work carried out by an automotive aerodynamics development department.
Pre development
Competitor testing / benchmarking - wind tunnel
Research
Target setting
Styling/Design phase
Initial modelling of themes - CFD
Scale modelling - wind tunnel
Full Scale clay - wind tunnel
Aerobuck testing - wind tunnel
Cooling aerobuck testing - wind tunnel
Cooling airflow - CFD
Quality maturation
Continued aerobuck testing - wind tunnel
Prototype aero surveys - wind tunnel
Production vehicle status tests - wind tunnel
Your CFD guy's going to be sat there for quite a while, twiddling his thumbs 
now if anyone else was replying theyd argue and quote lots of crap...but i cant be arsed! you win again.