[sammyg2]

Formula One could see a return to turbo engines and ground effect cars for the 2013 Championship.

With F1 looking to become more environmentally friendly and keep costs to a minimum, the sport has put together several Working Groups to look at various ways that F1 could achieve those aims.

According to Autosport, one idea being discussed is the use of a 1.6-litre four-cylinder turbo engine that would be handed a power boost through Kinetic Energy Recovery Systems (KERS).

Added to that, Williams' technical director Sam Michael revealed that the teams are also keen to introduce a fuel flow rate limit.

"Rather than dump as much fuel in as we can at the moment, there will be a fuel flow metre - so you won't be able to blow more than a certain amount of fuel. It is a good chunk less than we had at the moment," he said.

As for ground effect cars, Michael added: "They are talking about putting a greater proportion of downforce to the diffuser, a ground effect car - like the early 1980's.

"They have been looking at that, as well as increasing crash protection at the front of the car by moving the sidepods further forwards."