A grandmother who went on a never-ending test drive in a stolen car now faces more charges, these having to do with theft.The woman, Christy Stevens, 52, had already been hit with charges of grand theft for stealing a car from C&C Auto Sales on Beersheba Street. Now she faces charges for a variety of thefts, some of which grew from her auto heist.She was first charged when she made off with a car after claiming she wanted to take it on a test drive.“She walked onto the lot and entered the office and talked with the owner,” said McMinnville police officer Richard Teachout. “He asked for a driver’s license before giving a test drive.”The woman said “let me go get my license” and left the office.“The owner watched her go get her things and throw them into a parked vehicle the owner had been driving with the keys inside,” Teachout revealed, noting the owner came running out of the office to flag her down.