Are you looking to buy second-hand or used cars in Nigeria?
You could stroll around the street in your area where you live and check out some used cars for sale. But these days, the best way to do it is to get online and check different websites. I have given you samples of some portals that you can visit.
Check them out, because you may get ridiculously cheaper price on the internet than you could by walking or just travelling short distances in your area.