
Is having a car necessary in taking vacation to Los Angeles from the East Coast
It depends. Driving a car all the way to Los Angeles from the East Coast could be really troublesome if you'll only spend 1-3 days in Los Angeles.
If you're going to stay at a hotel, you can hire a cab to take you to your desired place anytime. Try to book your flight via expedia or travelocity. They provide flight + hotel + car accommodations if you need one.

