Complex sentence: The initial models used the coupe (two-door sedan) body style, and four-door sedan models were introduced in 1983, convertibles were introduced in 1985 and estate, or Touring, models were introduced in 1987.
Split into simpler sentences: The initial models used the coupe (two-door sedan) body style. Four-door sedan models were introduced in 1983, convertibles were introduced in 1985 and estate ("Touring") models were introduced in 1987.