Sierra RS Cosworth

1986 Ford Sierra RS Cosworth

Offered by Silverstone Auctions | Northampton, England | May 20, 2023

Photo – Silverstone Auctions

The Sierra was kind of a remarkable car for Ford of Europe. It was the sort of new-age family car for Europe, much like the Taurus would be in the U.S. But instead of the hotted-up SHO models, Europe got the Cosworth-powered RS.

The Sierra RS debuted at the 1985 Geneva Motor Show and was intended to homologate the Sierra for Group A Touring Car racing. The road cars featured a turbocharged 2.0-liter inline-four that made 201 horsepower. The Cosworth engine was only available in two-door Sierras that had some body tweaks, including that high-mount rear spoiler.

In all 5,545 were sold, including 500 of the RS500 version. This example remained with a French owner for over three decades and has under 50,000 miles. It has an estimate of $70,000-$82,000. Click here for more info.

Update: Not sold.

Sierra Cosworth RS500

1988 Ford Sierra Cosworth RS500

Offered by Silverstone Auctions | Sywell, U.K. | May 28, 2022

Photo – Silverstone Auctions

The Ford Sierra was a European family car sold between 1982 and 1993. For a brief time, the two-door variant was sold in the U.S. as the Merkur XR4Ti. A high-performance version, offered as a hatchback in 1986 and 1987 and as a sedan from 1988-1992, was also sold. It was called the Sierra RS Cosworth.

In 1987, some people at Ford thought about homologating the car for touring car racing, which required 500 “evolution” models. So Ford roped in Aston Martin Tickford to help convert the cars to “RS500” spec. Changes included a larger turbocharger for the 2.0-liter inline-four, which now was good for 224 horsepower. The front end was reworked to aid cooling, and a second spoiler was added beneath the rear wing.

This car has less than 36,000 miles, and a pre-sale estimate has not yet been published. You can read more about it here.

Update: Sold, but Silverstone won’t tell us for how much. Lame. Gotta love that transparency.

Monteverdi Sierra Cabriolet

1978 Monteverdi Sierra Cabriolet

For sale at Galantica Collection | Crans-Montana, Switzerland

Photo – Galantica Collection

American cars of the late-1970s weren’t great. There were some that were okay, but why Peter Monteverdi chose the Plymouth Valiant as a base for his new boutique luxury car, the Sierra, I’m not really sure. He must’ve gotten a hell of a deal.

The Sierra was sold primarily as a sedan and somewhere between 20 and 50 of those were built. He also built a very limited Cabriolet – so limited that only two were built. These were based on the Dodge Diplomat of the era. The cabriolet has a 178 horsepower, 5.9-liter V-8. Styling was by Fissore and it helped turn the dud of a Dodge into something resembling a nice Fiat.

Monteverdis are rare cars, but being one of just two, this Sierra Cabriolet is rarer than most. This one is for sale in its native Switzerland for $207,500. Click here for more information.

Monteverdi Sierra Sedan

1978 Monteverdi Sierra

For sale at The Gallery Brummen | Brummen, Netherlands

Photo - The Gallery Brummen

Photo – The Gallery Brummen

Peter Monteverdi’s Swiss car company built cars between 1967 and 1984. They built all kinds of things: SUVs, sedans, coupes, supercars… you name it. This, the Sierra, was available between 1977 and 1982. Strangely, it was based on the fairly-lame Plymouth Volare but had pretty features thanks to Carrozzeria Fissore.

The engine is a 5.2-liter V-8 making 160 horsepower. Three body styles were offered: sedan, cabriolet, and station wagon (this, the sedan, was the one actually sold to the public). No one is quite sure just how many were built, but it is believed to be between 20 and 50.

This car is in great shape and if you’re a collector of American cars or European cars, it should appeal to you. Alongside most Monteverdi vehicles, the Sierra is a model you almost never see. The price on this one? $50,192. Click here for more information.