Rate the following essay on its writing, argument, and language skills:
The developement of driverless cars is a good thing. Everyone should want to invest in a driverless car. Driverless cars would "fundamentally change the world."Driverless cars would help with assisting the driver and make is easier to funtion a car. These cars would be less expenceive to run and have driven more than half a million miles without a crash.

First, driverless cars help with assisting the driver, making it easier to operate. "They can steer, accelerate, and brake themselves, but all are designed to notify the driver when the road ahead requires human skills, such as navigating through work zones and around accidents." The cars are not truly driverless so the driver may take over when he or she is feeling unsafe about a situation. Driverless cars will be a positive thing for drivers who are just learning how to drive the car will do most of the work for then. It will be less pressure on the driver. Driverless cars will also decrease teen accidents and crazy drivers.

Second, driveless cars are less expencive then a regular car. Driverless cars uses half the fuel of today's taxis. Less fuel is great for the enviornment. Gas prices can get pretty high. More people will be able to aford to drive these cars and get to their destination with out having to worry about the cost of gas.

Finaly, safety is a big concern when dealing with driverless cars."This necessitates the car being able to quickly get the driver's attention whenever a problems occurs. Gm has developed driver's seat that vibrate when the vehicle is in danger of backing into an object. The Google car simply annonces when the driver should prepare to take over".

In conclusion, the development of driverless cars is a great idea. They help with assisting the driver, they are less expensive, and are safe to drive.

Score: 4