21.   A preliminary investigation showed the driver may have tried to use a bypass lane at the checkpoint because his vehicle had Israeli license plates.

22.   After three days of driving on reservation roads, the vehicles may have a lot of wear and tear on them, he said.

23.   All four-wheel-drive vehicles have power potentially available to all four wheels.

24.   Both vehicles had their engines running, according to the report.

25.   But many Japanese vehicles also have a height problem.

26.   But the researchers, writing in Nature, noted that once this density is exceeded, some vehicles have to slow down even more to maintain safe separation.

27.   But there is lots of low-speed power for hill-climbing and towing, and the vehicle has plenty of power for highway driving.

28.   By next year, all passenger vehicles must have them.

29.   But, among many innovations, the vehicle has a hydraulic suspension system that allows it to raise its rear up and down to vary ground clearance.

30.   Car-based vehicles have two main advantages, they say.