im even shorter, 5'2 and i only have 3 months to go.
So far it hasnt been a problem its just getting in and out. i know lager people ie by brother and sister in law have a lot of trouble its basically chair wound back and arms streched- however not that easiy if you are short.

I have known pregnant women who have had to give up driving becuase they couldnt fit comfortably anymore as a driver, again different cars are going to offer you positve and negative benifits!

my only suggestion is to wind your seat back and if you need to put a cusion behind you, unless your car offers adjustments?