The U.S.Department of Energy gave the Vehicle Research Institute a $500,000 grant to improve the biogas refining process and then demonstrate whether the fuel can be cost-competitive in cars.

VOA: standard.2010.02.23

After the arrests, he said he didn't know whether the vehicle had been found.

CNN: STORY HIGHLIGHTS

An investigation is under way into whether another vehicle was involved on the M42, a Warwickshire police spokesman said.

BBC: Lorry crashes off M42 flyover on to M6 Toll

Tassy-Mason said she did not know whether the vehicle had been stolen or what the relationship was between the car's owner and its occupants.

CNN: STORY HIGHLIGHTS