The Molinari ferry has more efficient, improved engines that should require less maintenance.

Even with improved engines, the dearth of overseas refueling stations made a full sailing rig a necessity.

The luxury models may have more than just cosmetic differences; they may receive improved engines and drivetrains.

The aircraft was also progressively fitted with improved engines.

As a result, the new Accord has an improved engine and other new features, but its base price is unchanged.

The rule mandates more improved engines in 2010.

In 1843, he contracted to build the Gypsy Queen, an iron boat to be fitted with his improved engine.

Variant with improved engines and increased fuel capacity, 57 built between 1979 and 1985.

Variant with improved engines, eleven inch increase in cabin length and increased gross weight, 108 built.

Variant with improved engines, 139 built.