The improvements are the amount of space inside (thanks to the extended wheelbase) and the more refined suspension.

In 1925 came the more powerful touring car, the Steiger 11/55 PS, with an extended wheelbase and the first sports car's engine.

It is an extended wheelbase, luxury variant of the Australian developed Chrysler Valiant.

Depending on model, buyers could choose from the usual wide range of transmissions; both the standard 114 and an extended 123-inch wheelbase were available.

The cars, all of which are landaulettes, were designed by Pininfarina and based on an extended wheelbase from the standard saloon.

Most high performance automobiles are designed to sit as low as possible and usually have an extended wheelbase and track.

The Envoy was also offered with an extended wheelbase to increase accommodation of more cargo and/or passengers.

The cars are available in normal and extended wheelbase.

The G.M. vans are available with a regular 112-inch wheelbase or, in what will undoubtedly be more popular, a 120-inch extended wheelbase.

The top-of-the-line Silhouette, with an extended wheelbase and four doors, starts at $26,805.