It would not be the first 4 door rear engine car produced. <img src=http://images.investorshub.advfn.com/images/uploads/2009/8/14/jt[jj1961_Chevrolet_Corvair_Monza_Sedan_f3q.jpg> This may not be the prettiest or the safest but was a 4 door rear engine. The 1961 Chevrolet Corvair Monza