Hello everyone and welcome to my channel and welcome to another vlog. Now do you know the difference between the 2W drive, the 4W drive and an all wheel drive? I mean you would be knowing the difference between the 2W drive and the 4W drive, but what is the real difference between the 4W drive and an all wheel drive is what we are going to be understanding in today's video. The first type of drive system that we will discuss is the 2W drive. Now as the name suggests, 2W drive is basically your wheels either of the 2 wheels are driven in your car. The front wheels or the back wheels. If it is the front wheel drive is called the FWD which is front wheel drive and if the real wheels are driven it is called an RWD. Now whenever the car is a front wheel drive, the combination is basically an engine, the gearbox and the tires driving the wheels, powering the wheels. Now this system is very economical because there is no shaft in case of a real wheel drive, a shaft that goes powering the wheels behind. Instead the gearbox is straight transferring the power to the wheels in front when it is a front wheel drive. The front wheel drives are also space efficient because there are less components and directly power transmitted through the front wheel. Another advantage of the front wheel drive is that while climbing hills because the engine's weight is in equilibrium with the front wheels. Basically it gives you a very balanced car when you are going uphill. Also when a car is front driven wheels is easier to control the balance of the car because if you have an understeer which is when your front grip is in there but then you have the power and the steering. It is easier to control the car compared to the real wheel drive. The real wheel drive is majorly seen in trucks and cars as well but why in trucks is because the truck has an engine in the front and it is going to be loaded in the back. So what happens is when you have the real wheel drive it basically gives you a balanced weight distribution. The next type of drive system is the four wheel drive. Now this is basically all your SUVs that have the four wheel drive. Now this system performs better in off road conditions. Why? Because all the four wheels are powered at the same time. The distribution may be different in different kinds of vehicles but then the wheels are basically powered to make sure that whenever you get stuck the other wheels make sure to pull you out of your problem. The four wheel drive basically gives you better traction compared to the two wheel drive. Now how is that because you have four wheels driven. So say suppose you are stuck in a desert somewhere or in a puddle. So if your two wheels or one of your wheels gets stuck the other three wheels make sure that they pull you out of that. The four wheel drive also has a differential lock and low range options for applying better traction. The low range basically gives you high torque and low power but then that basically helps you in coming out if you ever get stuck. So the four wheel drive system can also be used as a two wheel drive system. Say for example an FJ cruiser now the FJ cruiser has a lever which allows you to convert the two wheel drive into four wheel drive whenever you are going off roading and whenever or you are on roads you can switch back to the two wheel drive. Next type of drive system is the all wheel drive system. Now in this system the engine basically powers all the four wheels constantly do not equal amount of power goes into all the wheels. Now this system is basically suitable for super cars. If you know an Audi R8 it has all wheel drive system. So what happens is all the four wheels are being constantly driven but then there is an electronic ECU which is controlling the power that goes to all the four wheels. There are sensors which gives it information on how much power to deliver to all the four wheels. Now this type of system is basically suitable for high performance vehicles. As I mentioned before Audi R8 has an all wheel drive system and this system basically helps in better handling. When you are going into a corner it gives you more traction. But like a four wheel drive system an all wheel drive system does not allow you to switch back to a two wheel drive system but in fact this system is always on all the time. The problem with the all wheel drive system is that it is bulky and it reduces the fuel economy. Compared to the four wheel drive system where you can convert back to the two wheel drive and that increases your fuel efficiency. When the all wheel drive system helps is because it powers all the four wheels what it does it reduces the stress on a single wheel so there is much more less wheel spin and the wheel components last much longer. Now of all the drive systems the two wheel drive system is the most efficient system because it is only powering the two wheels. The engine is only powering the two wheels. The next system is the four wheel drive system because the four wheel drive system can be converted into a two wheel drive whenever you are on normal road. So it is not best compared to the two wheel drive system but then it is better than the all wheel drive system. The all wheel drive system because all the wheels are powered at all the time it is the least efficient system. Now in my opinion you do not need a four wheel drive system if you are not a frequent of rotor. So you do not need a all wheel drive system if you do not need power and traction of course you need traction but then the two wheel drive systems are enough to give you the amount of traction on normal road. But unless you want power and traction at high speeds then you have to go for an all wheel drive system. But otherwise you are better off with a normal two wheel drive system. But in case you do want a proper four wheel drive system then you should go with a normal four wheel drive system. Now why is that? Because a four wheel drive system also allows you to convert to a two wheel drive system and drive it on normal road and whenever you need off road capabilities from your car you can switch to a four wheel drive system. Now that is at least more fuel efficient compared to the all wheel drive system but not really as efficient as the two wheel drive system but you are better off between the two by getting a four wheel drive system. I hope this video gives you some understanding about the basic drive systems and how different they are and what you should be going for based on your requirement. Give it a thumbs up if you like this video and make sure to share and subscribe for more videos to come and also do not forget to check my other videos out on my channel page. See you soon next time. Bye bye.