This has to be one of the easiest lists of all time. It practically writes itself with one word: "China." For sure, China's proclivities for building shameless knock-offs of Western products are so well-known they're practically a punchline at this point. But believe it or not, slightly less-than-original concepts have been known to come from other places as well.
A lot of them are from Japan and Korea, whose epic knockoffs could also easily number in the hundreds. But Americans and Europeans have seen their fair share of wannabes, too. Worldwide, some blatant rip-offs like the Acura NSX, Mazda Miata, and Chrysler 300C went on to some degree of fame. And one Toyota of note quickly became a classic in its own time. Others, like the Chery QQ, have become more infamous than famous.
The lesson here: If you're going to build a blatant rip-off, at least make it better than the design you're stealing. You never know when a Ranker author is going to come along and compare cars side by side. If these similar cars look familiar, now you know why. For comparison's sake, check out this list of cars that look like other cars.