JM's idea is not bad. If you are avoiding taking risk then follow JM's suggestion. But since you are an IT professional, why don't you start an online auto parts store. Or give services to people at your place.
Are you sure that's what you want to do? You might consider the idea of fixing what's wrong with your current situation before you launch into something completely different and potentially less lucrative. There will be plenty of issues which occur in the auto business once you get into it.
What about the online auto parts idea, and offer question and answer facilities. I came across a window cleaner who gives online tuition about how to clean windows, http://www.do-it-yourself-window-cleaning-tips.com/ - Who would have thought it. This site was built with SBI which I think is a great way to go.
If you absolutely positively have to do the auto thing, what about a mobile service so you can go to the customer by appointment?