Haha no... like flipping houses.
As a hobby I would hit the salvage yards, or street corners, looking for cheap (yet easy to fix and popular cars) and buy them for pennies on the dollar. Throw some money into them and fix them up myself, and flip it. Depending on what shape it was in before I bought it, It could take a week or quite a bit more to get it into top $$$ shape.
About the only thing I cant do myself is huge body work (I can do small dents and dings, scratches etc...) that's where I would have to go for outside labor.
I learned to stay away from Mercedes during this lol.. bout two, and between the costs of fixing them up, I ended up losing money both times.
Toyotas, Hondas, and American sportscars are where you can flip them easily for some decent $$$