To all the people bashing on GTA IV's driving system/engine saying there was no hope for any improvements with it and complaining about the boat like feeling of the vehicles, this is for you.This mod was created by one person who made a script to make vehicles in IV to handle like they do in V, and they did a great job with it. Although there could be some obvious improvements with the mod, it's done very well. For instance, to make each individual vehicle on IV that's on V have the same speed, acceleration, and braking as it does currently V to make the mod better. That's kinda besides the point talking about how to make it better, but still, it goes to show it's possible and that's what I need to hear. Not because I enjoy V's handling more, because I really don't, but it raises the question why Rockstar didn't just improve the driving from the current engine they had. If they had a great fluid driving system like in IV where the cars had more more momentum, suspension, better body rolls, etc, why wouldn't they just implement that into GTA V and just add traction to the vehicles? It would work fantastic with it, and I guarantee a majority of people who are defending the driving on V complaining about IV's driving system wouldn't say a word about it. I mean come one, what were they thinking when they did what they did to the driving? In a way, I could guess they kinda had to make the driving this way so the current gen consoles could handle it on top of everything else going on in the game at once, but I know they could have found a way to make it work well with V. That's still no excuse to doing that though.
This was all that R* had to do, just tighten up the physics of IV a little like the chap in the video has done. Instead, they completely overhauled the physics engine which handles like the recycled rubbish that wasn't good enough for MCLA. How hard was it for the guy who made the video to improve on the over-exaggerated suspension and handling of IV - not very difficult, I'd wager. I suggest that R* give him a job as their vehicle physics expert.