I think that is the best way. Go to a hobby store, run to the sales department, grab a box of whatever car you are interested in, rip open the box (after you payed for it) read the instructions and start building. You will get the idea how it works, if you like it, what problems you run in to etc. If it is not a Ferrari you are buying, doesn't really matter. If you like it, you can buy all Ferrari's and build them later, and better. If you do not like it, you didn't spend a fortune, and you didn't wreck a Ferrari