Rate the following essay on its writing, argument, and language skills:
Cars today are driving closer and to being able to drive on their own. This can change the way people live and how people use tranportation in a positive way. Even though they aren't entirely "driverless" and still need a driver it's still a step in that direction. Driverless cars would take over public transportion system, create less accidents, and help people who can't drive well.

Driverless cars are esstientally going to be the future public transportation. The cars will end up taking the postions of taxis and even buses. Google cofounder Sergey Brin envisons a future where these cars will offer much more flexiblity while cutting the useage of fuel by half.

These self drivng cars will also be safer for others on the road reducing the chances of a crash. Car companies have taken extreme precautions with these machines fitting them with senors all over the cars. Google has taken the idea into its own hands with some companies like Toyota. They've modified a Toyota Prius and have outfitted it with a postiton-estimating sensor on the left rear wheel, a rotating sensor on the roof, a video camera mounted ner the review mirror, four automotive radar sensors, a GPS reciever, and an inertial motion sensor. These sensors will apply brakes and reduce power from the engine so that the driver at hand can take over.

Of course these driverless cars will need a passenger that a operate the car in case of an emergancy. In 2013, BMW announced a development of the "traffic Jam Assistant", which allows the cars to handle driving functions at speed up to 25 mph. Special touch sensors make sure a driver is keeping hold of the wheel at all times. They can steer, accelerate, and brake themselves but still need to notify the driver when it need human skills navigating through areas like work zones.

On the other hand, some people wouldn't lay their lives in the hands of a self driving car. Driving laws today focus on keeping the drivers, passengers and pefestrians safe. Today, traffic laws are written with the thought of a human driver controlling the car. In most states, it has been illegal to to even test driverless car; but scientist beileve that more states will allow testing after seeing results from those states that have been doing it already.

This future of self driving cars is near. Automakers like Telsa have projected a 2016 release for a car capable of driving by it self 90% of the time. Other companies like Mercedes- Benz , Audi and Nissan have plans to release cars that drive by themselves by 2020.

Score: 4