The full-size Mercurys were redesigned for 1965 with a new torque-box frame and a more slab-sided look. The Breezeway window was now only available on pillared sedans, with all two door hardtops being fastbacks.

The Mercury-exclusive 410 cu in (6.7 L) and the 428 cu in (7.0 L) FE engines were added for 1966.

1967 brought a refresh, and the vertical Breezeway roofline disappeared although they could still be had with a drop-down rear window. The 410 was dropped for 1968.

1. www.coolcats.net
2. www.geocities.com/MotorCity/Speedway/1789/77marquis.htm
3. users.lewiston.com/mytee/Gpage.htm
4. www.members3.boardhost.com/MERCURYCOUGARS/
5. en.wikipedia.org/ Mercury
6. www.mercurymontegogt.com/
7. www.mercurycomet.com