I think cars could be implemented and work.
With New Vegas though?
Nope.
Engine's too crap and the rocky landscape makes it too hard for it.
When we get a new engine I could see vehicles as a possibility as long as we can't:
* get a mounted turret on top of it.
* get to shoot from it.
* get to run over deathclaws with it.
* enter races and stuff. (This isn't borderlands.)
The vehicles should be like dune buggies.
Can come in different forms, Fast, Standard and Heavy.
* Fast is fragile and can easily blow up and get knocked over by big wildlife.
* Standard is yknow, like SPECIAL stats all set to 5, the in between car.
* And Heavy is slower than the other two but has greater armor to protect it.
Cars should be able to be stolen, this means your car can be stolen as well.
It should requires three skills.
* Security (Lockpick, hacking, traps and hot-wiring (Only for stealing cars, but with a high Security skill you can disable your own car so other's have a lesser chance of stealing it))
* Mechanics, the better the mechanics skill the better your car is and the more easily you can repair it yourself. (Passive, like Medicine and Barter with it's occasional uses)
* And Piloting which influences how well you can steer it and how fast you can turn and stuff.
Cars can be upgraded with several features, one of which is a bug which when planted and someone steals it you can find it's location on the map and take it back.
You can also pay people in different settlements to keep an eye on your car(s).
That's what I've got for how I want cars to be handled.
I do think they could fit perfectly well in Fallout, but it depends on how they're implemented. (No Borderlands inspiration please.)
Pretty much this!
Although I'd like some things different. Sure they
could be stolen, but that wouldn't be something that would happen too often. I don't think there should be that many functional cars in the game, so therefore not that many people would know how to hotwire and steal them. It could of course be stolen if you park it on the street in some town with not so good inhabitants or good law enforcement. Also, if you have a really bad reputation, people might not steal in because they're scared of you, like muggers on Freeside not recognizing who you were and back off. They'd know that if you steal this person's car, he/she would be after you and he/she would not be merciful. It'd also be easy to find your car again since there aren't that many cars so people would have noticed anyone driving passed them (if the thief is so stupid driving through populated places with them).
I think you should be able to run over people with it, but the bigger it is, the harder it impact, which will slow down the speed of the car, damage it, even damage you, and maybe not even killing what you hit. So don't try and hit Deathclaws and Super Mutants, because you will just be crawling out of the car, crippled, and get smashed. You might not even run into them, they might tip your car over, like Bighorner tackle you from the side.
I don't think you should be able to enter races like they were a common thing in the wasteland, nor shoot from the car. But, I think there should be
one quest which involves racing, there might be this guy who also has a car, pimped up and upgraded, all that, and he has a big interest in acing from pre-war books and movies. So, that's one quest that would involve a race. Maybe even rigged aswell.
Now, shooting from the car.. I don't think you should be able to do it, you are too busy driving your car. But I'd like if there were raiders, and not like Fiends or CW raiders, they don't feel like the road warrior kind, but more like raiders from Mad Max. Chasing you with their cars, whether you have one or not, would be pretty cool, and they'd be more than one in those cars, shooting at you from the windows or even have a turret mounted on it (harharhar, yes! But more like those dart throwing things in the move.)
Moving on, there should be different kinds of cars. First, dune buggy is a nice one. It's fast, it's light, can drive off-road pretty easily, got room for two people but not that much equipment, doesn't use up that much EC power (or whatever fuel cars use) but it's pretty fragile to all attacks, easy for big enemies to flip over and it's the easiest vehicle to steal since you can't lock a door or anything. Maybe not leave the key in it is a start, and even set a few traps (if you got a good Science skill and the stuff needed, a trap that makes the whole vehicle electric if you tamper with the car, or a good Explosion skill and a mine... well, yeah)
Second, there should of course be a sedan car. Maybe the Corvega would be the standard one you can find/buy, and the Highwayman would be the Unique sedan car you can obtain. The Sedan would be the standard car you talk about, good speed (aslong as it's not off-road. Try to keep to the roads, or what's left of them), medium damage resistance, medium EC consumption. The thing with these cars is that they are for the good looks, gives you +1 to Charisma by owning one (yes, sir, I do own that beauty over there) and may open up some nice dialogue option somewhere, and it has a pretty good storage space (trunk's in front). It probably has a lot of other pretty things aswell. Remember, it has no electronics, no computers, +800 horsepowers, 0 to 60 in 5 seconds (well, pre-war atleast) and a full anolog system!
Third, there something like a Humvee, a military vehicle with good damage resistance and off-road capabilites. Of course it should
be a Humvee, just something like it, this one would of course have it's engine/reactor at the back of the vehicle. It would also have good storage space aswell, and have room for one more companion (hopefully, future Fallout games will let you have two humanoid, of both Combat class and Support class, and that they can interact with eachother) but it would really eat your EC up! This car is also pretty heavy, and not so easy to tip over by bigger enemies, and will also do more damage to those you run over, but still, you can get some whiplash (head crippled) and bumper damage.
All these vehicles you would be able to mod in different ways, raise the damage resistance at the cost of speed, put on new tires for better grip, modify the reactor to use less EC, put spikes on it for a bonus to fleshy enemies and for that raider look, and of course you would be able to chose whatever color you want it in! Depending on your skills like Repair or Science, and what items you've got, you could even do it yourself at a garage, or you ask the mechanic to do it for a cost (like buying implants). Btw, cars shouldn't also feel as light as they do in many games with cars. Feels like if I crash into something, it can send me flying in an unrealistic way. I think cars should feel heavy and clunky. Even the dune buggy, although less that the other vehicles.
(I also think that there should be an old pre-pre-war tank, involved in a quest where you maybe steal if from a museum occupied by enemies of the quest giver, and you'd also have to find components for him to make fuel. You'd be able to drive it but only the duration of the quest. The fuel should be enough to take you back to the quest giver, so if you drive off to roadkill some raiders and run out of fuel... well, when you get back to him and say you ran out of fuel, he'd send someone else to get it instead and he'd yell at you a bit, since the fuel would have lasted. Then you can lie with good enough Speech that you were followed and had to shake them off first.)
Now, about those skills. Security, Mechanics and Piloting - I think Lockpick, Science and Repair would suffice for the first two ones. Instead of getting Traps back in the game, it could use Science, Repair or Explosives depending on the trap (hopefully they could get it back in the game) About Piloting... I'm not sure having a skill that would only determine how good you are at driving a car. I dunno if that could be a perk you learn frome someone instead, how to drive, or if it could depend on some Skills and/or Stats.
Oh, and another thing. If there will be cars, I think there should be tamed and mountable creatures aswell. Like a Giant Mole Rat (I've seen a concept art of a guy riding a huge mole rat, it's awesome), Brahmin, maybe Bighorners depending on the location, maybe a huge mutated Lynx and even a Giant Ant, Mr. Pinch!
TL;DR! It's a good idea