Please enable the Bug Fixes hack (located on the Settings tab) and go into that hack's "Mod Settings" menu, and then make sure "Late Focus Freeze" is ticked.

If you're interested, we have a Discord server that contains a channel solely dedicated to asking for help when modding the game. I'd recommend joining, if you'd like. Either there, or here, it'd be helpful to see your sr3i and sr3l MFK files. You could upload them to a file host service and share links (Discord will let you do this directly), or just copy the contents.

You also need to load the vehicle in the sr2l.mfk file.

LoadDisposableCar("art\cars\cBlbart.p3d","cBlbart","AI");

I'm not sure on the specifies, I recall hearing at one point that the game has hardcode that defines how many Buzz Cola Crates/Vending Machines in a region can be tracked in the save data, which probably ties in to the P3D data chunk names. I guess any additional props of that nature just don't count. Certain non-Buzz Cola props have flags in the save data too (such as the Lemonade Stand), and that's probably a similar thing but hardcoded a bit differently.

Hey Addy, dunno if you've encountered this, but every time I start to control the RC car the mod crashes no matter what. I'll update you if I can figure out what's going on.

Uh-oh, that doesn't sound good. I myself haven't encountered it, and I haven't been reported this issue by anyone else. Nonetheless it bears investigating. Something that would help a lot with regards to that is if you could upload and link a crash dump here on the forum. Make sure "Save Crash Dump" is enabled in the launcher's settings and then repeat the steps that lead up to the crash. After it crashes, open "Documents\My Games\Lucas' Simpsons Hit & Run Mod Launcher\Crashes" and find the .DMP file with the most recent timestamp as it's filename. If you could upload that to a file hosting website and then share a link here, I can get the crash dump to Lucas, who can hopefully understand from it roughly what the issue is, and then I can go off of that. Thanks.

Thanks, everyone! This is a follow-up post where I'll answer some questions (answers in spoiler blocks, click to open) and provide some more information.

Btw, which is the original voice before the Ferrari – Black stops the car on Mission 6?

Why I can't enter any vehicles during mission 2 and 4?

One thing I didn't understand was what am I supposed to "avoid" during the part where Bart had to collect the cola crate? I just kept failing the mission as I walked over to collect it.

I've become aware of a couple of things I'd like to improve/fix up (for example, the cola crate stage being a bit vague, and card quotes still showing), so soon enough I'll update the mod to improve these things and more. It'll be a soft update, though, so I won't bump the thread.