I built a car port out of a rectangle metal gazebo and hang flowering pots off the edges where the rain water wants to drain. A tall fence forms one long wall and a fence gate forms the shorter rear wall. Its big enough to also shelter snow tires a table and 4 garbage cans. Besides a metal and bamboo roof I got a extra heavy duty rubber tarp as a waterproof roof from Amazon that hasn't degraded in 5 years. It looks fine and keeps hail, ice and snow off the car. It probably costs a grand but building a garage was quoted to cost $35K or more.

I didn't design or engineer this thing from the start but instead took an impromptu approach over 3 years. I do have to share this shelter with a family of birds who like to nest there every year. Hornet nests are unwelcome and are evicted. However hornets do not poop on the car.