Mercedes C180 sport
diesel is more efficient
A car has to be fuel efficient. It means it has to completely burn the fuel.
No
Kick it
A car will make traveling and commuting more convenient and efficient.
there is no accesory for that
"Have you thought about adding a roof rack to your car for easier and more efficient travel?"
It's a more efficient fuel.
Yes and No. It is more efficient then a conventional gas powered system, but still has a long way to go in terms of being real efficient.
A tram is more efficient because it doesn't release lethal gases which go up to the atmosphere and tram uses electricity
The Mazda Miata is very fuel efficent.
It has made the car production line more efficient, fast, and green.