First year of the 104 in the 124 sedan was the 2.8 and 3.2 of 1993 but as mentioned it was in the 1990 coupe as a 3.0. Both 103 and 104 have their strong points and weak points - there's no clear answer on which is better. The 104 has a little more power and actually gets better gas mileage with HFM in 93. For a DIYer it's tough to beat a 103 motor - simple and lots of room.