California Health & Safety Code Section 11352 prohibits the transportation of controlled substances and establishes that to transport controlled substances with intent to sell is a felony. It specifically reserves the felony charge for transporting with intent to sell, rather than for personal use. If the quantity of drugs in your vehicle was small enough to be considered for personal use only, you may still be charged with transportation of a controlled substance, but only as a misdemeanor. That is not to say that you could not be charged with a felony transportation if you had a small amount of controlled substances in your vehicle. It just means that if you can prove the transportation was for personal use, the charge may ultimately be reduced to a misdemeanor simple possession because it is not possessed for the purposes of sale or transported for the purposes of sale.