You can drive your car into and around Yosemite, although some roads are closed from around November through May/June and tire chains may be required on open roads from around October through April (depending on conditions). You can use public transportation to get to and around Yosemite all year.
Did You Know?
Starting in 1907, the Yosemite Valley Railroad brought passengers bound for Yosemite Valley up the Merced River canyon to El Portal. From there, they would take stagecoaches to the Valley. Some of the old train cars are now on display in El Portal.