Google has revealed that it has begun work on its own self-driving car, building several prototypes in order to test how the cars perform in the real world.

Currently the prototypes, which are simple two-seat cars with minimal creature comforts, are capped at 25mph/40kph. A display shows the planned route while a battery of sensors allows the car to 'see' 274 metres in all directions.

The autonomous prototypes don't feature any of the common controls that we might expect – such as a steering wheel or pedals – because Google claims that "software and sensors will do all the work".

Its early prototypes are basic in order to allow them to be as flexible as possible, so the company can quickly identify issues and areas of required development. Google's aim is to develop and deliver a car that can take you to your destination at the push of a button, removing the human element entirely.

"We’ve been working towards the goal of vehicles that can shoulder the entire burden of driving," said Chris Urmson, director of Google's self-driving car project. "Just imagine – you can take a trip downtown at lunchtime without a 20-minute buffer to find parking.

"Older drivers can keep their freedom even if they can’t keep their car keys – and drunk and distracted driving? History."

The company currently has plans to build around 100 prototypes which will begin trials later this year, although these early versions will be fitted with conventional controls for safety reasons, while a small pilot scheme in California may follow if the cars perform well.

"If the technology develops as we hope, we’ll work with partners to bring this technology into the world safely," added Urmson.

Google has previously studied self-driving cars, using modified versions of existing models – including the Toyota Prius and Audi TT – to develop the hardware and software required.

Many car manufacturers are also currently exploring autonomous vehicles, and running trials, including Mercedes and Volvo.

Photographs: Google has built a handful of prototype self-driving cars; it intends to assemble around 100 in total for testing; and Google’s rendering illustrates what a production version of its automated car may look like.