My truck has a custom dual exhaust because the 4.9 straight 6 has 2 exhaust manifolds and it needs to go because it is not attached properly and instead of having both before or after the rear right tire one pipe is in front and the other is behind the tire plus it looks kinda ugly since the pipe is pretty rusty and the cherry bombs on it look 10 years old but the turbo mufflers are brand new so it is really a complete hack job but at least the frame and floors are solid which is rare for a New England vehicle that is almost 30 years old I would take a picture but I can't really get a good one right now
Speaking of exhausts, My 99 has what looks like a 2.5in stock exhaust an a muffler that sits low enough to hit speed bumps. Not the plastic ones, but physically raised road.
They might be nice, but they are literal arsenic to the atmosphere. Poor places with high fuel prices (resulting in a high amount of diesels) are notorious for there unimaginable levels of smog.
Well, I used poor places, because they usually dont fit emission control, making it a lot worse. You know you have a problem when the "Recirculate" air is worse then the air that was already in the car.
That is all in the design of a vehicle, not the material that it is made from. For example, in bikes you can buy both steel and aluminium frames. Steel frames can be made light by using thinner steel, aluminium is inherently lighter, but you need to make the frame much thicker to have enough strength. Same goes in cars, it's how you design it that matters. Another example is that sheet metal isn't very strong by itself, but if you corrugate it you end up with a very rigid surface (of course you can still bend with the fold). A lot of cars are made from sheet metal that had been formed into certain shapes and then welded together, some of those sections of sheet metal are quite weak on their own, but when you put them all together you end up with a stronger vehicle. Greater than the sum of it's parts. This is also a consideration in tuning how a vehicle feels. For example, in a bike with no rear suspension (hardtail bikes), they often design the chassis to have some give in it. Since stiffer isn't necessarily better, it's always good to have some compliance to allow for bumps to be absorbed, to not cause vibrations etc. Of course, material is also an important decision, since different materials are often used for different parts of the car. Generally the safety cell tends to be made from a higher grade metal than the crumple zones. Carbon Fibre is also a bit of an exception, since it doesn't crumple, so they may often use metal crash structures. This is part of why thin pillars don't exist any more. You absolutely can make thin pillars strong enough (maybe not super thin, but think about how strong and thin roll cages are, so you could go thinner and weaker than that for consumer cars), but it is expensive to do so, since you need to use higher grade metals, rather than relying on cheaper materials with more space to fold them in clever ways. Plus of course the other things like fitting airbags in b & c pillars (a pillars don't have them though) and "thicker pillars look safer" etc...
Ideal place for those new Petrol engines that run like diesels. Since trucks will spend a lot of time in situations where the engine can operate as a diesel using petrol fuel. So potentially you could get them pretty similar. That is of course assuming that electric (perhaps hybrid petrol?) trucks don't become the new thing before that technology comes into play for truck markets.
That's what happens when the oil supply starts running out. Anyway, I saw this article. Thought it was interesting. https://finance.yahoo.com/m/0875356b-a119-3fb6-a7b6-8e5055b8fa51/ss_chevy-salesman-confirms.html
Looks like a normal minibus if it wasn't for the odd door placement, otherwise its pretty regular vehicle.
Gas engines can, using technology, can be much more efficient. Hydrogen powered semis are also a good option in the future, seeing that hydrogen is orders of magnitude more abundant then oil, and as the automotive world switches to hydrogen. (or electric, if we find a better way of making fuel cells) we will find much more efficient weighs of harvesting hydrogen.
Not anywhere and no where near as soon as 2025... Without diesel use the transportation of goods would come to a total stop and you're having a laugh if you think that companies are going to go all out and spend millions on some sort of newly developed hydrogen or electric trucks to replace their huge fleets of diesel trucks. You can go on all day about hydrogen and electric trucks, but these aren't real world at all yet.
I would hazard a guess that by 2025 there will be some Electric trucks on the road. But certainly not a majority by a long way. While Tesla claims that over the lifespan of the vehicle they are cheaper (and very well suited to short haul), I doubt many (if any) companies are going to be throwing old lorries in the bin. So I would expect some adoption of them in "forward thinking" companies by then. If someone buys a lorry today they could reasonably expect it to do more than 10 years service, possibly a lot more, and electric lorries are still not on the market yet. When you see Volvo, Scania, Renault, Mercedes, MAN, and DAF selling electric lorries, then you will start to see adoption grow. Possibly more interesting is whether Tesla's lorry would be able to compete in the UK and European market. Obviously for the EU market anything that needs to be imported is going to have extra upfront costs right out of the gate. On top of that, the above brands could probably build electric lorries that are better suited to European markets than Tesla's current future offerings. Mainly because you really don't need as much performance as the Tesla lorry puts out over here (smaller trailers, 55mph(60mph UK limit) speed limiters), so you can cut costs there quite easily. In a market that is driven by whichever solution offers the lowest price, Tesla might struggle outside of home turf. Especially since no one has an electric lorry infrastructure yet, which is one of the main advantages you get with a Tesla car.
