A 'mid-size car', frequently referred to as an 'intermediate', is the
North American term for an
automobile with a size between that of a
compact and a
full-size car. In
Europe, cars of a similar size are often referred to as '
large family cars' or '
executive cars', depending on whether they are
luxury cars. As many of them are
sedans, they are commonly called 'saloon cars' within the
United Kingdom and 'sedans' throughout Europe.
North America
The car that defined this size was the
Rambler Six introduced in 1956. The mid-size class in the U.S. grew out of the compacts of the early 1960s. For example, the
Ford Fairlane was referred to at its introduction in 1962 as a ''compact intermediate'' because it was barely bigger than its close relative, the
Falcon. General Motors' first entries in the class, such as the
Oldsmobile F-85,
Pontiac Tempest, and
Buick Special were not mechanically related to the compact
Chevrolet Corvair, but were similar in size. At that time vehicle classes were defined more by their
wheelbase than interior passenger space and cargo capacity. The class began to grow rapidly, and for the next ten years each expansion in size in the full-size field was followed by a proportionate growth in the mid-size models. By the mid-1960s, they were as big as the full-size cars of the mid-1950s. By the mid-1970s, they were nearly as big as the full-size cars of the mid-1960s. During the 1970s, the intermediate class was generally defined as vehicles with wheelbases between 118 inches (2845 mm) and 118 inches (2997 mm).
A turning point occurred in the late 1970s, when rising fuel costs and government fuel economy regulations caused all car classes to shrink, and in many cases to blur. New "official" size designations in the U.S. were introduced by the
EPA, which defined market segments by passenger and cargo space.
[1] Formerly mid-sized cars, like the
AMC Matador that had a combined passenger and cargo volume of 120 cubic feet (3.3983 m³), were now considered "full-size". The situation was complicated when General Motors began to downsize its models about two years before everybody else. In 1978, the
Chevrolet Malibu nameplate had been redesigned on a 108 inch (2743 mm) wheelbase, while the
Ford Fairmont had been designed to replace the
Ford Granada with a Volvo-like size at 105 inch (2667 mm). Both competed with the Chrysler standard and extended K-cars, often classified as compact, though mid-size by EPA standards Mid-size platforms such as the
Plymouth Satellite would be rebranded as full-size, rebodied, or dropped in the face of the downsized
Chevrolet Caprice. Some were subsequently replaced by what used to be large compacts, like the
Plymouth Gran Fury in police applications. The Fairmont would be badged with the full-size
Ford LTD moniker before being replaced by the class-defining
Ford Taurus.
Similarly, import models such as the
Honda Accord and
Toyota Camry that had been classified by the EPA as compact in 1985 grew to the mid-size class by the 1990s. Mid-size vehicles today usually have
wheelbases between 2.68
meters (105") and 2.79 meters (110"). Another definition specifies between 110 ft³ (3000 L) and 119 ft³ (3300 L) of interior volume. This is the most popular size car sold in the
United States. The
Toyota Camry and
Honda Accord are now regular best sellers in the U.S. Domestic entries were often larger than similarly priced imports, but Honda sized its dedicated North American Accord to match the
Ford Taurus. Ironically, it so defined the market category that on its retirement in 2006, it actually outsold the slightly larger
Five Hundred and smaller
Fusion combined, however, most agree that this is because in its last year of production the Taurus was sold exclusively to fleet buyers.
Europe, Australia and New Zealand

The full-sized
Opel Omega B was marketed in the United States as the mid-sized
Cadillac Catera, despite their identical dimensions.
Cars in Europe's equivalent category to North America's mid-size are generally known as '
large family cars' or '
executive cars' (small family cars are North American
compacts), whereas Australia and New Zealand also use the mid-size label. European and Australasian mid-size/family cars are usually a little smaller than the North American norm, even from the same manufacturer. For comparison, the 1998
Ford Taurus weighed around 1500 kg, had a 2757 mm wheelbase, and was powered by a 3.0 L V6 engine, whereas a 1998
Ford Mondeo weighed around 1300 kg, had a 2704 mm wheelbase, and was often powered by a 2.0 L I4.
European and Australasian mid-size/large family cars are also usually offered in sedan and hatchback form, as opposed to the sole sedan form found in the models populating the North American category. European mid-size cars tend to be front-wheel drive with a focus on ride comfort, although the twisting nature of European roads demands a high level of handling agility which would not normally be required in the USA.
As elsewhere, upsizing has blurred the distinction between types, with models that would be and are compacts in North America, such as the
Ford Focus and
Opel Astra, approaching the mid-size category by growing larger and fitting more powerful engines with every iteration. However, it is usually thought the categories to grow along the years rather than the cars switching categories.
Sometimes the definitions of car categories are manipulated to serve marketing ends. In Australia, Toyota had categorized the V6 equipped Camry as a large car and the 4-cylinder Camry as a medium or mid-size car in order to dominate more segments, despite the physical size of the cars being identical. Similarly, the
Opel/Vauxhall Omega/
Cadillac Catera, which had dimensions right on the border between the North American categorizations of full-size and mid-size, was marketed as a luxury full-size car in Europe and a mid-size car in North America.
Japan
In Japan, the term mid-size car probably does not have the intermediate sense that it does in other markets. Due to space restrictions the range of cars available in this market starts from a much smaller size. As such, the models that Japan exports to other markets to compete in mid-size market segments such as the
Mazda 6 and
Subaru Legacy occupy a more exclusive segment in the Japanese marketplace.
An interesting quirk of Japanese automotive tax codes is that width is one of factors determining which category a car is taxed under. Therefore even mid-sized cars destined for export markets from Japan had widths of less than 1700 mm, as manufacturers had to look to domestic consumption as well as export. However, as export markets have become progressively more significant for Japanese car manufacturers, more models have been produced that break this 1700 mm wide limit (around 67 inches).
See also
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List of current mid-size cars
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Car classification
★
Vehicle size class
★
Large family car
★
Executive car
References
1. How are vehicle size classes defined?
External links
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EPA list of 1985 midsize cars
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EPA list of 1988 midsize cars
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EPA list of 1990 midsize cars
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EPA list of 1994 midsize cars
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EPA list of 1998 midsize cars
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EPA list of 2000 midsize cars