Hi Navz,
Welcome to the forum. For learning from scratch I would say try not to bite off too much in your early days. It's easy to get bogged down in a lot of technical detail that you could initially find quite daunting so just take it a step at a time. Start, as Drew suggested, with the guide that came with your camera but don't worry if you find some content a little hard to understand at first.
Particularly look at the tuitional videos that you can download from this PhotoRadar site, they are a very convenient way of learning.
You could also read various books and there are several suggestions in
this thread.
As regards photographing cars, if that particularly interests you, have a look at
this site but I suggest you follow their tutorials only
after you have gained a reasonable amount of basic knowledge and experience.
Finally, don't feel like you are on your own - everyone starts in your position. If there is anything you particularly need to know just post a question in the Beginner Photography section - you'll find plenty of help and encouragement from the members here.
Good luck
Bump