The Autozam Clef is a mid-size sedan that was sold by Autozam from 1992 until 1994.

Autozam Clef
Overview
ManufacturerAutozam (Mazda)
Production1992–1994
AssemblyJapan: Hiroshima, Hofu
DesignerYasuo Aoyagi (1989)
Body and chassis
ClassMid-size car
Body style4-door sedan
LayoutTransverse front-engine, front-wheel drive
Transverse front-engine, four-wheel drive
PlatformMazda GE platform
RelatedMazda 626
Mazda Cronos (Japan)
ɛ̃fini MS-6
Ford Telstar
Mazda MX-6
Ford Probe
Powertrain
Engine2.0 L FS-DE I4 (gasoline)
2.0 L KF-ZE V6 (gasoline)
2.5 L KL-ZE V6 (gasoline)
Transmission5-speed manual
4-speed automatic
Dimensions
Wheelbase2,610 mm (102.8 in)
Length4,670 mm (183.9 in)
Width1,750 mm (68.9 in)
Height1,400 mm (55.1 in)
Curb weight1,310 kg (2,888 lb)

It shared Mazda's GE platform with cars like the ɛ̃fini MS-6 and Mazda MX-6 coupe. The word "clef" is a musical notation, and Mazda chose it to signify that the Clef was meant to serve as a reference point by which other Autozam products would become to be known or regarded as. The Clef was mechanically related to the Mazda Cronos, but featured different bodywork, and rear side window designs.

The Clef had the same width dimensions as the Mazda Cronos which shared the 2.5 L V6 engine. The width, length, and engine displacement dimensions have particular significance in Japan, due to dimension regulations, where Japanese consumers pay an additional annual tax for larger vehicles, and also had implications as to how much the annual road tax obligation will be.

As the Clef was the top level sedan at Autozam, which was introduced as a retailer of entry level products to Japanese consumers, the width dimension presented an issue in that buyers in Japan were liable for yearly taxes, and because the Clef was largely identical to other Mazda GE platform cars, Japanese buyers who were willing to pay extra taxes for a wide car from Mazda had many choices and the Clef wasn't usually the first choice.

Of all Autozam products sold at the time, only the Clef exceeded the width dimension stipulation; other Autozam products were either kei class vehicles or supermini products.