In the real world (where some folks have just never dwelled) the front part of that pan is not really a functional "sump", it's just a little house for the oil pump to live in, that fills up with oil, to fit a particular engine in a car that was not designed around it, without major surgery to the car. It's a compromise at best, but lets you put together a low cost, fun car. Unfortunately, the thread became infested by an obfuscator from the past