Skis carried in a roof-top rack should have their tips pointed up and back. You don't have to have your own car to learn to ski. There are bus trips arranged by ski tour operators, ski shops, ski clubs, church and school groups. Most ski areas offer discounts to groups of skiers, so you'll be saving money at the same time. Travel by plane and train can also be easy as many ski lodges and resorts have shuttle service to airports and bus or train terminals.
Most airports also have rental cars available.
Depending on where you live, regularly scheduled public bus transportation may already be available to the slopes. Although it's not imperative to be in good physical shape for skiing, you'll probably find that you enjoy your time on skis more, and also have fewer aches and pains throughout the following week, if you do a few easy exercises. Basically, you should concentrate on stretching and strength exercises. Walking, running, or jogging are most beneficial and build endurance. Role the soles of your feet toward each other, and then to the outside.