Corvette: Year by Year1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965
1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978
1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
The interior of the C4 was all new and like the chassis, incorporated some innovative features. There was a fair amount of room especially when compared to the C3, although the driver and passenger did feel isolated by the prominent center tunnel. Rather obvious for the passenger is the large lump thing called the "breadloaf" because of its shape. At the time it was anticipated that federal regulations would include a safety impact for the passenger, not unlike the collapsable steering column in front of the driver. The breadloaf was designed to meet this requirement which ultimately did not materialize.
Cloth seats (above) were standard and leather was an option (RPO A09; $400.00). Cloth sports seats (RPO AQ9; $625.00) were available later in the model year and included an adjustable lumbar support and power controls.
The instrument panel (below) was all electronic and advanced for 1984. Both the speedometer and tachometer consisted of bar graphs in addition to numerical readouts. This was especially useful with the tachometer as the graph took on the shape of the power engine's power curve. The idea was that the driver could quickly determine if they were using engine revs in the desired area of the power band. The whole panel was quite colorful and in the words of one enthusiast, "looked like the lights of Tokyo".
The speedometer graph (the left portion of the panel) only went up to 85 mph, in accordance with government regulations of the time. Oddly enough, the numerical readout was not similarly limited. A fair amount of information was available, including fuel level, oil pressure, oil and coolant temperature, and battery voltage. A computer calculated and presented instant and average miles per gallon as well as fuel range figures. A switch setting determined if the oil pressure, oil and coolant temperature, odometer, speedometer readings were metric or english units. It was however a complicated affair with reliability problems; reports indicate that many instrument panels had to be replaced at considerable cost.
In the 1980s customers of just about all cars were removing the factory sound system and installing better performing aftermarket units. Chevrolet answered the challenge with a partnership with Bose, a well respected home audio manufacturer. The Delco-Bose (RPO UU8; $895.00) unit was custom designed for the C4 Corvette and featured innovations such as amplifiers at each of the four speaker locations, a noise reduction system for both the radio and cassette tapes, true electronic tuning and speaker enclosures designed for the Corvette interior. Everyone agreed that the system produced excellent sound and despite the high price was installed on the majority of 1984 Corvettes.
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