It's a 114 coupe. The rubber bumpers date it from 1974 to 1976 (last year produced). The 280C came with a double overhead cam inline six cylinder engine, the M110. Performance was lackluster due to emissions requirements in the mid seventies.

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1992 400E current
1988 300E sold
1973 280C totalled
1973 280SEL never got it running
1971 250C my first love but rusted out