Seville had been the first production American car to offer a 350 cu. in. electronic-fuel-injected engine as standard, and it returned for 1977. Sensors fed engine data back to an on-board analog computer under the dash, which in turn signalled the eight injectors how to meter the fuel charge from the constant-supply fuel rail. Added this year were standard four-wheel power disc brakes, a retuned suspension system, and Butyl rubber body mounts. Other standard features included
variable ratio power steering (16.4 to 13.8)
front and rear stabilizer bars
15 in. wide-whitewall steel-belted radial tires
automatic level control
power windows and door locks
tilt/telescope steering wheel
individual rear reading lamps
automatic parking brake release
a new seat/shoulder belt combination
A chime warned that seat belts weren’t buckled. Concealed wipers worked with a Controlled Cycle system. Body finishing used extensive hand work. Large-diameter Pliacell-R- shock absorbers were the same as those on the Cadillac limo. Bolts were epoxy-encapsulated to prevent loosening.
Note 1: In addition to amount shown, 1,152 Sevilles were built in Canada.