cheapest controller for automotive can

Hi
I am supposed to develop a "simple" automotive project drive some interior car lights controlled by CAN.

Which IFX controller is best suited for this? (Cheapest)
Does IFX has a automotive certified controller with an ARM core?
Is there a IFX controller with built in CAN interface?
Does IFX have a certified CAN protocol stack?
If not which one would you recommend?

Thx