The Daytona originally used the 2.2 L Chrysler K engine in normally aspirated (93 hp) or turbocharged (142 hp) form. The 100 hp 2.5 L K engine was added for 1986. In 1985, the 2.2 L Turbo I engine's horsepower was increased to . The 1984 Daytona was available in three trim lines: standard, Turbo and Turbo Z. Total production was 49,347. The Daytona Turbo was on "Car and Driver" magazine's 10Best list for 1984. Both the Daytona and Chrysler Laser were available with the Chrysler electronic voice alert system through 1987. A performance-oriented "Shelby" version of the Daytona was introduced in 1987. For 1987, the Daytona was restyled externally and featured pop-up headlights. New in 1987 was a "Shelby Z" trim level with an available Chrysler developed Turbo II ( – ) intercooled version of the 2.2 L Chrysler K engine, as well as a heavy-duty A555 transaxle with Getrag gears. The Shelby Z also featured numerous suspension upgrades, including a larger diameter front sway bar and disc brakes on all four wheels. This version was sold in Europe under the name "Chrysler GS Turbo II". A more luxury-oriented "Pacifica" trim line was also added to replace the Chrysler Laser, which was dropped in mid-year 1986. Among the optional equipment included a leather interior, eight-way power enthusiast driver's seat (with mechanical thigh and lumbar controls), digital instrument cluster, and a 12-button trip computer (with instant fuel ratings as well as trip averages and estimated travel times).