Oddly enough, it's at about 52 MPH. The engine isn't "lugging" and the speed isn't high enough to cause excessive wind drag. But since most people are not content with a slower speed, the best thing they can do is try to keep a very constant speed on the open highway - set the cruise control at, say, 72 MPH. Most of your sightseeing buses stipulate that as their maximum speed. In that manner, you are not constantly on someone else's tail, but not so fast that you can't be passed.
the bugatti veyron with its 0.3 litre hybrid engine and a top speed of 23.9 mph
The car that Jesus drives
toyota prius
A large car is not economical, an economical car is not large. The only way to combine the two is put a small engine into a large car. This would be expensive and performance would be very poor.
Geo Metro
To find the most economical car would all depend on the buyer's perspective, it is a matter of which make the purchaser is looking for.
275-5555
It was cheap, economical and reliable.
"economical" has no comparative or superlative form. You would say "more economical" or "most economical."
Steel is most economical, strong and reasonably easy to work with.
No car can actually reduce the amount of carbon dioxide in the air, but an economical car will add less additional carbon dioxide to the air than a less economical one.
the muscle car was built for performance not economy at least not the years 1966-1974.