Rate the following essay on its writing, argument, and language skills:
Driverless cars are the future. They could end the problems we have today with our modern cars like the gas and safety issues.

The idea of driverless cars could dramatically change our public transportation system. Google cofounder Sergey Brin says he envisions a future with a public-transport taxi system. The public-tranport taxi system he forsees uses half the gas of the taxis we have today and they could provide much more flexibility than a bus. The idea of driveless cars could also result in less crashes and provide more safety. The cars that Google has advanced skills that our cars today don't haveadvanced skills such as posistion-estamating sensors on the left rear wheel, a rotating sensor on the roof, a video camera mounted near the rearview mirror, four automotive radar sensors, a GPS receiver, and an inertial motion sensor. All of these improvments make the cars alert while driving and in the case making them safer than today's cars.

With that being said, these cars are the future. I believe that driverless cars are going to one day end all of our cars problems we have today.

Score: 2