The Porsche 911 Carrera Speedster debuted in 1989 as a one-year special for the 911s 25th year anniversary and had direct design attributes from the 356 Speedster. It had a frameless, raked windshield that was also 3.1 inches shorter than a Carrera's. At the rear, the dual hump tonneau cover replaced the back seats. To the driver's right and left were roll-up windows and a manual rollaway roof. The 911 Speedster saved some weight over the cabriolet, coming in about 150 pounds lighter thanks to t